Enertrols SM 30M1-BP, Sub-Miniature Shock Absorber4 PieceLotCondition: * New Stock. In OEM Packaging. As Pictured.Additional Notes:* Quantity: 4 Shock Absorbers* Stroke: 0.32″ (8.1mm)* Effective Weight Min/Max: 1.0-4.30lbs (0.45-1.95kg)* Max. Energy Capacity: Per Cycle: 31in/lbs (3.5Nm) Per Hour: 50,000in/lbs (5,650Nm)* Return Force: 0.2-1.0lbs (.89-4.45N)* Return Time: 0.3* Steel Button/Urethane Cap Assembly* M8 x 1 MetricEnertrolsSM 30M1-BP