Note:For better performance and long-time life,please add the lubricating oil before use it.
Total 25Pcs,pefect compatible with Wltoys 12428 12423 1/12 RC Car,also it will fit other rc car,please check the size before buying.
Upgrade part for stock bearings or RC steering knuckle hub parts.Less Friction,durable performance
The 12428 bearings made of high Bearing Steel,deep groove ball bearings,light in weight and easy to install and remove.

5x11x4mm Ball Bearings:
Inner diameter:5mm
Outer diameter:11mm
Thickness:4mm

7x11x3mm Ball Bearings:
Inner diameter:7mm
Outer diameter:11mm
Thickness:3mm

8x12x3.5mm Ball Bearings:
Inner diameter:8mm
Outer diameter:12mm
Thickness:3.5mm

5x9x3mm Ball Bearings:
Inner diameter:5mm
Outer diameter:9mm
Thickness:3mm

4x8x3mm Ball Bearings:
Inner diameter:4mm
Outer diameter:8mm
Thickness:3mm

Material: Steel
Total Quantity:25Pcs
Weight:34g/Set

Package includes:
5PCS Ball Bearings 5x11x4mm
5PCS Ball Bearings 7x11x3mm
5PCS Ball Bearings 8x12x3.5mm
5PCS Ball Bearings 5x9x3mm
5PCS Ball Bearings 4x8x3mm