Note:For better performance and long-time life,please add the lubricating oil before use it.

Total 18Pcs,pefect compatible with Wltoys 1/14 144001 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 144001 bearings made of high Bearing Steel,deep groove ball bearings,light in weight and easy to install and remove.

4x7x2.5mm Ball Bearings:
Inner diameter:4mm
Outer diameter:7mm
Thickness:2.5mm

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

7x11x3mmm Ball Bearings:
Inner diameter:7mm
Outer diameter:11mm
Thickness:3mm

Material: Steel
Total Quantity:18Pcs
Weight:17g/Set

s Package includes:
6PCS Ball Bearings 4x7x2.5mm
6PCS Ball Bearings 4x8x3mm
6PCS Ball Bearings 7x11x3mm