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Item #:
15040373
TN229XL Toner Cartridge Set 8-Pack Replacement Compatible for Brother TN-229XL TN229 XL MFC-L3720CDW MFC-L3780CDW HL-L3220CDW HL-L3280CDW HL-L3300CDW
Item #:
15040373
NAD 1254
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*All items will import from US
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Give your derby car more weight in the back for more speed. It may be the difference of 1st place and 2nd.
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What Stands Out
Lead-Free Material
Crafted from tungsten, these weights ensure a safe, non-toxic racing experience, eliminating health concerns often associated with lead-based products.
Variable Sizes
Includes a variety of incremental cylinder sizes, allowing for precise weight adjustments to optimize your car’s performance and stability on race day.
High Performance
Designed for maximum strength at a compact size, these weights enhance your pinewood car’s speed and handling, giving it a competitive edge in any derby race.
Product Details
- 1.7 times denser than lead for precise weight placement and fast acceleration
- Easy installation with a 3/8 drill bit, secure with glue if needed
- Varied sizes for precision craftsmanship, ideal for hitting 5-ounce weight limit
- Non-toxic, safe to handle, chamfered top & bottom for safety
- Handy, reusable tube for transport or storage of unused weights
- Package contains 3.25oz. (5 half ounce, 2 quarter ounce, and 2 eighth ounce weights)
| Brand | Mirrorvlix |
| Number of Packs | 8 |
| Number of Items | 8 |
| Manufacturer | Mirrorvlix |
| UPC | 867018000220 |
| Model Name | MR-US-BR-TN229XL-1B3C |
| Model Number | 43234-1750 |
| Mfr Part Number | TN229XL Toner-4 Pack |
| Color | Multicolor |
| Item Weight | 0.2 lbs (90 grams) |
Who Should Buy?
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Pinewood Derby Participants
Ideal for racers needing to adjust weight for optimal speed and performance in pinewood derby competitions.
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Serious Hobbyists
Great for collectors and builders seeking high-quality, heavy materials for customized racing cars.
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Environmentally Conscious Users
Perfect for those looking for lead-free options while maintaining competitive weight specifications in their race cars.
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Casual Users
May not be suitable for those who rarely participate in pinewood derby events or just enjoy casual racing.
Product Description
TN229XL Toner Cartridge Set 8-Pack Replacement Compatible for Brother TN-229XL TN229 XL MFC-L3720CDW MFC-L3780CDW HL-L3220CDW HL-L3280CDW HL-L3300CDW HL-L3295CDW L8245CDW MFC-L8395CDW L3765CDW Printer
About This Item
Upgrade your pinecar's performance with Dr. Rocket Pinewood Car Derby Weights Tungsten 3.25oz. These heavyweights are designed to give your pinewood car the power it needs to race to victory. Made from tungsten, these weights offer several advantages over traditional lead weights.
Tungsten is 1.7 times heavier than lead, which means you can pack more weight into the back of your car. This allows for a greater build-up of potential energy and faster speeds on the track. The package contains nine 3/8 diameter cylinders with chamfered edges for easy insertion and safe handling. With a range of incremental sizes, including five half-ounce, two quarter-ounce, and two eighth-ounce weights, you can achieve a precise weight distribution for optimal performance. Installation is a breeze – simply drill a standard 3/8 hole and insert the weights you need.
You can choose to cover them with wood putty for a seamless look or proudly display their sleek metallic appearance. Either way, these weights are sure to give your pinewood car a competitive edge. But that's not all! These tungsten weights are designed with safety in mind. They have no sharp edges, making them safe for both children and adults to handle.
Plus, they are non-toxic and lead-free, ensuring peace of mind during the racing process. Whether you're a seasoned pinewood derby racer or just starting out, Dr. Rocket Pinewood Car Derby Weights Tungsten 3.25oz is a must-have for serious competitors. Upgrade your car's power and performance with these heavy incremental cylinders and leave your competition in the dust.
Get your set today and start on your path to pinewood derby domination!.
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What are Tungsten Car Derby Weights and why are they used?
Answer: Tungsten Car Derby Weights are high-density weights specifically designed for enhancing the performance of pinewood derby cars. Their small size allows you to maximize the weight without compromising aerodynamics. Tungsten is preferred over lead due to its non-toxic nature, making it safer for children. These weights help in gaining speed during races, making your pinewood derby car not just competitive, but also compliant with safety standards. -
Question:
How do I install the Tungsten weights on my pinewood derby car?
Answer: To install Tungsten weights, first determine the best position for weight on your car for optimal balance. Pre-drill holes in designated areas, then secure the weights using screws or glue. This placement can help lower the center of gravity and enhance stability during races. For instance, placing weights towards the rear can improve speed, while centering them can enhance control. -
Question:
What sizes are available for the Tungsten weights?
Answer: The Tungsten Car Derby Weights come in varied sizes of incremental cylinders allowing for precise adjustments to your car’s weight. Common sizes range from smaller 0.5 oz increments up to larger 3.25 oz weights. This versatility enables racers to fine-tune their vehicle as needed, ensuring better control and maximizing speed. Whether you’re aiming to hit the perfect weight limit or adjust for track conditions, these options provide flexibility. -
Question:
Are these Tungsten weights safe for children?
Answer: Yes, these Tungsten weights are safe for children as they do not contain lead, which has health hazards. Tungsten is a safe, non-toxic alternative that allows young racetrack enthusiasts to participate in derby events without health risks associated with traditional lead weights. This safety aspect is critical as children often handle and modify their derby cars during the preparation process. -
Question:
What makes Dr. Rocket Tungsten weights different from others?
Answer: Dr. Rocket Tungsten weights are specially engineered for optimal performance with a focus on precision and safety. Each weight is crafted to ensure a perfect fit and high durability, outlasting many races. Their innovative incremental designs allow for better adjustability compared to standard weights. As a result, users often find their car’s speed and stability notably improved, making them a go-to choice for serious competitors. -
Question:
Can I mix Tungsten weights with other types of weights?
Answer: Yes, you can mix Tungsten weights with other types, like zinc or steel weights, to achieve your desired overall car weight. However, it’s important to consider the size and distribution of weights to maintain the car's balance and aerodynamics. For example, using heavier Tungsten weights with lighter steel in different sections can help in achieving a competitive edge by adjusting the center of gravity effectively. -
Question:
How do these weights improve my car's speed in races?
Answer: The Tungsten weights improve your car's speed by allowing you to strategically place weight for better aerodynamics and smoother roll. By lowering the center of gravity and redistributing weight closer to the back, your car can attain faster acceleration and maintain stability on the track. This meticulous weight distribution can lead to quicker lap times, giving you a competitive advantage during racing events. -
Question:
Are these weights compatible with all pinewood derby car kits?
Answer: Yes, the Tungsten weights by Dr. Rocket are designed to be compatible with most pinewood derby car kits. Their adaptable size and shape mean they can fit standard car designs that adhere to typical weight regulations. Whether you’re working with a highly customized kit or a traditional model, you'll find these weights provide enhanced performance without issue. -
Question:
What is the weight of each individual Tungsten weight?
Answer: Each individual Tungsten weight has a weight of 3.25 ounces, specifically engineered for optimal performance. This singular weight allows for high-density placement, meaning you can achieve the desired total weight with fewer pieces. This can simplify the weight attachment process and reduce the fiddliness of multiple smaller weights while maximizing speed and stability. -
Question:
Where can I buy Pinewood Car Derby Weights Tungsten 3.25oz in Namibia?
Answer: You can buy Pinewood Car Derby Weights Tungsten 3.25oz by Dr. Rocket on Ubuy. They offer a user-friendly platform where you can easily browse the range of Tungsten weights, ensuring that you find the right products to enhance your pinewood derby racing experience. Ubuy is known for its reliable selection and fast service, making it a great option for acquiring your essentials.
Mirrorvlix Toner Cartridges 43234-1750 Editorial Review
The Pinewood Car Derby Weights Tungsten 3.25oz. Pine Race Car Power by Dr. Rocket has received positive reviews from customers. Users have noted that the weights helped in balancing their derby cars without being bulky. They found the weights to be small, easy to install, and heavy, providing concentrated weight for faster cars. Customers have appreciated the convenience of simply drilling the correct size and depth hole for installation, without the need for glue or additional materials. Overall, the product has been described as effective, efficient, and suitable for Pinewood derby competitions. **
Customer Reviews & Ratings
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Pros
- Easy to install with a snug fit
- Small and concentrated weight for faster cars
- Convenient drilling process for installation without glue
- Effective in balancing Pinewood derby cars
Cons
- No notable Cons mentioned in the reviews
Platform Trust & Buyer Confidence
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Mohammad
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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NAD 1254
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Features & Benefits
- Extra 3.25 oz offer a precise weight distribution
- Cylinders are a standard drill bit size: 3/8 diameter
- Beveled, non-toxic and child safe for handling
- Tungsten weights have huge advantages in pinecar racing
- Winners of Pinewood Derby competitions use Tungsten Weights
- 1.7x heavier than lead allows you to pack more weight in the back for more speed
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