Item Type: RC Car Shock AbsorberMaterial: Aluminium Alloy, PlasticProduct Length: Approx. 12cm / 4.7in ( Manual Measurement, Slight Error May Exist )Hole Diameter: Approx. 3mm / 0.1in ( Manual Measurement, Slight Error May Exist )Hole to Hole Length: Approx. 11cm / 4.3in ( Manual Measurement, Slight Error May Exist )Application: Designed for ARRMA 1/7 1/8 Car 1Durable Material: These RC car shock absorbers are made of aluminium alloy and plastic material, resistant to wear, corrosion and rust. Longer service life. 2Balancing Driving: These RC front shock dampers provide balancing driving experience and reduces vibration due to bumpy road conditions. 3Quick Adjustment: These RC front absorbers features CNC machining. Threads on the main part allow you to quickly adjust the height. Pretightening force can be adjusted as well. 4High Elasticity: These 1/7 1/8 shock absorbers with highly elastic spring ensure high stability and excellent damping effect. 5Easy Installation: These front absorbers designed for ARRMA 1/7 1/8 car can be easily installed and they pose little burden to your RC car.