The MOST ECONOMICAL Mousetrap Kit
Recycle your old CDs and use them as the back wheels of your mousetrap car. This kit includes  KELVIN® CD Inserts,  1-3/8" dia. Wheels, a Mousetrap, Trap Arm, Wood Base, and  Axles. Please note that CDs are not included with this kit.
Bulk pack of this kit available (see below).