1、[Premium Material] RC shock absorber is made of premium aluminum alloy and plastic material, which is wear resistant, prevent corrosion, high strength, rust proof and long life. 2、[Balanced Driving] RC front and rear shock absorbers are well made to provide a balanced driving experience and reduce vibration due to rough road conditions. 3、[Adjustable] CNC machined RC front and rear shock absorbers with threaded body, adjustable oil pressure, removable, and the ability to adjust preload. 4、[High Elasticity Spring] RC car spring damper with damping oil inside, the high elasticity of the spring ensures the damping effect and improves the stability of the RC car. 5、[Wide Compatibility] This spring shock absorber is suitable for 1/10 RC cars, such as for HSP, for HPI, for Redcat, for Traxxas, for Arrma, etc, easy to install and remove. Item Type: RC Shock Absorber Material: Aluminum Alloy, Plastic Total Length: Approx. 95mm/3.74in (Short), Approx. 105mm/4.13in (Long) Installation Hole Distance: Approx. 85mm/3.35in (Short), Approx. 95mm/3.74in (Long) Maximum Diameter: Approx. 21mm/0.83in Spring Diameter: Approx. 1.2mm/0.05in Hole Diameter: Approx. 3mm/0.12in Suitable for 1/10 RC Car (Such As for HSP, for HPI, for Redcat, for Traxxas, for Arrma and Other Brands) 4 x RC Shock Absorber 4 x Brass Ball Head 4 x Screw 4 x Nut