This set is a limited-edition color variation of Item 15529 Low Friction Plastic Double Rollers (Black/13-13mm). These are plastic rollers which can be used for the rear roller setup. Double rollers are suitable to setups for beginners, as they are simple to fit, provide smooth, stable cornering, and help prevent your car from bouncing over the course wall thanks to the top rollers.

• Rollers are molded in low-friction POM plastic (red).
• The attachment of Item 94752 (520 ball bearings) and 94768 (Bearing Roller Spacer) provide superior functionality.
• 13mm (top and bottom) Double Rollers x2
• Screws and metal parts included.
• Compatible with MA, VZ, and AR chassis cars. Some bodies may require modification.