Shock Absorber, Fixed, Material Steel, Force 0.6 lb, Max. Cycle Rate 45 per min, Max. Weight 6.6 lb, Rod Thread Size M6x0 .75, Locking No, Rod Dia. 1.8 mm, Cylinder Dia. 6 mm, Stroke 4 mm, Extended Length 29 mm, Fixed Resistance Yes, Adjustable Resistance No