Features Shell is made of high quality material, good damping, high hardness and strong heat resistance The spring inside can reset the piston rod fast cause the perfect movement of the check valve It has a soft shock absorbing effect because the self-pressure-regulation function Greatly reduce the shock and improve the stability It can reduce shock and noise in automated mechanical operations, enhance working efficiency Package Included: 1 x Oil Pressure Shock Absorbers Note: Please aim the impactor at the center of the shaft.Do not remove the front cap to use, because remove the cap will lengthen the piston rod and make it hit to the bottom, this may break the bottom.It is strictly prohibited to spray paint on the tube teeth and shaft hub, otherwise it will affect the heat dissipation effect and leaking oil.Do not make the piston rod rust and other foreign matter.If there are two or more vibration absorbers are installed on the same side, Please confirm the synchronization.For safety, do not break it up to use. Specifications: Material: Alloy + Stainless steel Color: Black Stroke: 8mm Max absorbed energy: 2Nm Energy absorb: 15200Nm/h Effective weight: 0.5-6WE(KG) Allowable speed: 0.8-3m/s Working temperature: -10~80℃ Thread: M10 Length: Approx. 5.8cm / 2.28inch Weight: Approx. 23g Package List