TAMIYA 95606 Lightweight Double Aluminum Rollers (13-12mm/Green)
★These ingenious rollers have differing diameters top and bottom: the 13mm section is in regular contact with the course wall, and the 12mm as the car leans through corners.
★The result is a more stable drive and less tendency to topple over.
★Crafted in lightweight and durable green color anodized aluminum.
★Built-in 520 ball bearings ensure smooth, efficient rotation.