This is a color variation of Item 15529 Low Friction Plastic Double Rollers (Black/13-13mm). The simple composition is suitable for beginners.
【Item Contents/Information】
★13mm (top and bottom) Double Rollers x2
★Rollers are molded in low-friction POM plastic (blue).
★These simple double rollers are 13mm top and bottom, and recommended for use on the rear of the car. They support the car if it leans, rolling on the lane wall.
★Can be used in conjunction with separately sold 520 ball bearings and bearing roller spacers, for a further performance boost.
★Screws and metal parts are also included.