Easy-to-wind and snag-free string release system eliminates tangles and snags for increased performance Pre-cut and drilled balsa wood frame Uses lightweight low inertia DVD/CD layers for wheels Travels distances from 15 to 30 meters (49 to 98 feet) Can be assembled in less than 30 minutes for most first time builders.

• Length: 13" (330mm)
• Width: 6" (152mm)
• DocFizzix Product Number: 1710

• Two Pre-Drilled Balsa Wood Side Rails (8x1/2x1/4")
• Two Brass Tubing Axles (6x3/16")
• One Brass Tubing Lever Arm (6x1/8")
• Four DVD Wheels
• Eight Rubber DVD/CD Spacers
• Four Metal Thrush Washers
• One Victor Mousetrap
• One Zip Lock Axle Hook
• One 36" long piece of Kevlar String
• One Top Secret Construction Guide and Performance Tips Sheet

• What is a mousetrap powered car and how does it work? A mousetrap-powered racer is a vehicle that is powered by the energy of a wound up mousetrap's string.
• The most basic design is a follows One end of a string is tied to the tip of a lever arm that is attached to the mousetrap's "snapper arm".
• The other end of the string has a loop that is designed to catch a hook attached to a drive axle.
• Once the loop is placed over the axle hook, the string is wound around the drive axle by turning the wheels in the oposite direction to the vehicle's intended motion.
• As the string is wound around the axle, the snapper's lever arm is pulled closer to the drive axle causing the mousetrap's spring to wind up & store energy.
• When the drive wheels are released, the string is pulled off the drive axle by the mousetrap causing the wheels to rotate.