20-Pack of Ultra-Thin, Low Inertia Wheels, 10-Brass Axles, and 20-DVD/CD Spacers for Mousetrap/Rubber Band Powered car and All STEM Vehicle Projects.

20-Pack of Ultra-Thin, Low Inertia Wheels, 10-Brass Axles, and 20-DVD/CD Spacers for Mousetrap/Rubber Band Powered car and All STEM Vehicle Projects.

• Includes Doc Fizzix’s Ultra thin, low-inertia wheels that are half the thickness of a normal CD/DVD and have only half the rotational inertia. Less rotational inertia means your vehicle will travel further and faster when compared to a vehicle using a normal CD wheel.
• Everything you need in one bulk package, 20-PACK of Ultra-thin, Low Inertia Wheels, 10-Brass Axles, and 20-DVD/CD Spacers for Mousetrap/Rubber Band Powered car and all STEM Vehicle Projects.
• Includes light-weight brass tubing axles that spin with less friction for increase speed and distance, and do not warp like wood dowels, for a smoother ride without wobble.
• Includes Doc Fizzix's flexible rubber CD/DVD wheel spacers that are designed to act as tiny shock absorbers to damper small bumps and imperfections on the floors surface providing for a smoother ride and an increase in both the top speed and the total travel distance of your STEM vehicle project.
• Perfect for mousetrap cars, rubber band racers, ballon vehicles, and/or all STEM science projects
• Includes Doc Fizzix's "easy-wind", "snag-free" propulsion system designed specifically for mousetrap and rubber band powered racers.
• Save time and money when you order in bulk. Complete 10-pair of Ultra-thin, Low Inertia Wheels and Axle setups. Ideal for your next large group STEM project based activity.
• All our products are 100% made in the U.S.A by Doc Fizzix in Spicewood, TX