Compatibility: This rc upgrade and modification kits suitable for H12Y 1/12 carMaterial: The rc parts are made from aluminum alloy and brass, ensuring durability and longevityReplacement Parts: Great upgrade rc car replacement to replace your old or damaged partsFunction: RC car replacement part help you improve the performance of the rc control car and prolong the service life.Easy Install:1/12 RC car accessories is designed for easy installation on your rc car model. Specification: Material: Aluminum Alloy Brass Size Chart: Gear Cover:3.9cmx4.04cmx7.5mm/1.54inchx1.59inchx0.30inchFront Axle Steering Cup:3.692cmx4.05cmx1.95cm/1.45inchx1.60inchx0.77inchFront Axle C Hub Carrier:5.33cmx1.6cmx2.26cm/2.10inchx0.63inchx0.89inchRear Axle Cup:3.17cmx2.29cmx2.82cm/1.25inchx0.90inchx1.11inchFront Axle Housing:10.16cmx3.56cmx3.15cm/4.00inchx1.40inchx1.24inchRear Axle Housing:10.16cmx3.46cmx3.5cm/4.00inchx1.36inchx1.38inch Package Includes: 2 Pairs RC Gear Covers1 Pair RC Front Axle Steering Cups1 Pair RC Front Axle C Hub Carrier1 Pair RC Rear Axle Cups1 Set RC Front Axle Housings1 Set RC Rear Axle Housings Note: Color might be slightly different due to the color calibration of each individual monitors.Please allow slightly measuring deviation due to manual measurement.