General description 100% Brand New ball bearing kit made of high bearing steel, featuring deep groove ball bearings. This kit is widely used, economical, and designed for standard bearing applications, providing less friction, higher speeds, and enhanced durability. It is easy to install and replace. Technical specifications Material: Steel Color: Silver Package Contents: 40 x Ball Bearing (5x8x2.5mm) 40 x Ball Bearing (8x12x3.5mm) 120 x Ball Bearing (5x11x4mm) Measurement allowed error: +/- 1-3 cm Compatibility and accessories Suitable for: TT01, TT-01, TT01D, TT01E, TT01R, DF02 1/10 RC Car