General description Features smooth operation and excellent performance. Belt drive design effectively reduces noise. Compact size makes it easy to carry and install. High strength material ensures durability and resistance to deformation or damage. A great upgrade accessory to improve your RC car performance. Technical specifications Size: 5.0mm Color: As shown Material: Plastic + Metal Compatibility: 1/10 RC Crawler Car Axial SCX10 Wraith 3.17/5.0mm Motor Gear Installation Use the metal disc to put it in place. Both large and small friction plates should be glued with double-sided tape. The groove on the pulley is pasted with a friction plate of corresponding size. Put the bearing in the middle. Install metal discs, non-slip springs, and nuts. Install the two gears closer to fit the belt, and then adjust the distance between the gears to tighten the belt. Other information Package Contents: 1 Set x Belt Drive Gears Set for RC car. Note: Light reflection and different displays may