100% new and .Make of high Bearing Steel,Deep Groove ..Widespread bearing,economic and standard.Less Friction, Higher Speeds and Durability.Special no contact dual rubber seals to seal out dirt while providing friction free performance.Easy Installation & Replacement.Suitable for: XV-01 XV01 1/10 RC CarColour:blue + silverMaterial:rubber+steelPackage Contents:9 x Ball Bearing(5x10x4mm)5 x Ball Bearing(4x8x3mm)4 x Ball Bearing(5x8x2.5mm)4 x Ball Bearing(10x15x4mm)2 x Ball Bearing(3x7x3mm)2 x Ball Bearing(3x6x2.5mm)Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.