mousetrap cars and vehicles

The winning edge is DVD layers
Give yourself the winning edge over the rest of the competition. DVD Layers have half the thickness and have half the rotational inertia of a normal CD. Vehicles that use DVD layers require less pulling force and will see an increase in travel distance from 5-15 meters more than with CDs because more of the mousetrap's energy goes into the forward motion of your vehicle instead of the rotational motion of the wheels. Also, DVD layers will have much less air-friction than normal CD wheels. With this set-up you get everything you need to attach your DVD layers to your vehicle including axles, spacers, thrust washers, and step-by-step plans.

Set includes the following: 4-clear DVD layers, 8-DVD/CD spacers, brass axle tubing, 4-thrust bearings, axle hook, kevlar string, and step-by-step plans.