Price: $11.95
(as of Feb 22, 2026 16:55:17 UTC – Details)

Pinewood Pro’s cylindrical tungsten weight set includes the best weights for your derby car. The five incremental cylinder weights of this set allow you to pack more weight in a smaller area, giving you greater flexibility in your car design and more accurate weight placement for speed.

Each package contains five 3/8″ diameter cylinders with chamfered edges for easy insertion. Three 0.5 ounce cylinders are 0.44″ long, one 0.3 oz cylinder is 0.27″ long, and one 0.2 oz cylinder is 0.18″ long.
Just drill a standard 3/8″ hole or holes in your car, insert the weights you need, and cover the hole with wood putty so your weights are hidden in the car.
The total weight of the 5 cylinders is 2 ounces.

This weight set also includes your free PRO Wheel Spacer Tool! It offers two key functions:

One end is a feeler gauge for setting the perfect wheel spacing when you insert your axles/wheels into your car. Just put the spacer against the car body, snug up your wheels, and remove the spacer. This is an easy way to set a critical adjustment so your wheels are not too tight or too loose.

The other end of the PRO Wheel Spacer Tool is a Drill Guide template. Place the Drill Guide against the car body where you want to drill your 3/8” weight holes and trace the circle with a pencil. You can also use a nail to mark the center point of your drill hole to make drilling easier.

Note to metallurgists: These cylinders are Class 3 tungsten alloy with 95% pure tungsten.

This product has been tested and passed appropriate CPSIA standards by an independent lab, and has received a Children’s Product Certificate (CPC).

Pinewood Pro is a US company, proudly supporting the Pinewood Derby community for over 20 years.
Excellent Value: This tungsten weight set includes five incremental cylinders and a PRO Wheel Spacer tool—just what you need for designing and fine-tuning your derby car for race day.
Easy to Tune and Install: Multiple sizes make precise tuning of your derby car a simple science. Plus, the weights are chamfered, so they easily slide into a 3/8” drill hole.
Dense and Effective: The tungsten used in this set of weights for Pinewood Derby racing is 1.7x denser than lead, which means it’s also 1.7x smaller than lead. Plus, it’s 2.7x denser than zinc.
Non-Toxic: These derby car weights are designed with tungsten that is safe for children, non-toxic, and have no sharp edges. Have peace of mind while young ones experiment with weight and placement.
Bonus Tool: These cylindrical tungsten weights come with Pinewood Pro’s PRO Wheel Spacer. One end is a feeler gauge for easily setting perfect wheel spacing. The other end is a 3/8″ Hole Drill Guide.