Watch the power of physics with the 4M Mousetrap Racer Kit. Learn about converting potential energy into kinetic energy this part mousetrap, part car as it races across the floor. This amazing miniature car is powered along with a re-purposed mousetrap spring. Let it roll with replaceable wheels made of recycled CDs. Made using safe and high-quality materials, this product is designed to last. Give the gift of science with toys and gadgets that foster curiosity and encourage scientific learning. Recommended for ages 8 and up.