Tamiya Mini 4WD 13mm Dia. Roller Ball Bearings (2pcs.) II - 15475

★Ball bearings are a must-have racing upgrade for Mini 4WD machines, facilitating smoother rotation and helping keep speed and stability as the car zooms around the course.
★Steel casings make for long-lasting, durable parts.
*Outer diameter: 13mm, Inner diameter: 5mm, Thickness: 3mm.