[Size]: RC Car Accessory is 0.25inchx0.37inchx0.13inch in size; [Package Contents]: Replaces Part contains 4 bearings, which can be installed in your RC car for immediate use or saved as spare parts for future needs; [Lightweight]: 1/16 RC Car Metal Bearings will not add any weight to your RC car, ensuring that its speed and performance are not affected; [Compatibility]: RC Ball Bearing Kit is suitable for 16101, 16102, 16201, 16103 RC cars, universally compatible 1/16 scale RC cars; [Material]: Metal Ball Bearings are made of metal material, which can ensure service life even under frequent use conditions

What's in the box
4 x Wheel Bearings