Revell Bar Chassis Weight
Officially licensed by the Boy Scouts of America. Gain a competitive edge and make your Pinewood Derby racer run faster. Just add Bar Chassis Weights! These ultra-safe, 99.99% lead-free weights are sectioned off into different sizes, allowing you to easily fine-tune your car per race regulations. Use the included screws to safely secure the weights to your car's chassis. Pliers required.