2X( and durable.
of high Steel, Groove ..
Widespread ,economic and standard.
Less Friction, Higher Speeds and Durability.
no contact dual rubber seals to seal out dirt while providing friction free performance.

Easy Installation & Replacement.
Suitable for: TT01 -01 TT01E TT01D TT02B 1/10 RC Car
Colour:silver+blue
Material:metal+rubber

Contents:
12 x RC Car Ball (5x11x4mm)
4 x RC Car Ball (5x8x2.5mm)
4 x RC Car Ball (8x12x3.5mm))