High strength material is corrosion resistance, hard texture, strong resistance to pressure.It is easy to disassemble and install.High quality spring shock absorber has adjustable soft and hard.There are various specifications can meet customer needs.It is suitable for mountain bike, folding bike, lady bike, front and rear shock absorber mountain bike, folding bike.Type: Bike Shock AbsorberMaterial: Aluminum, Steel 750LBS/IN (lbs)Features: Durable, Shock Absorbing, Bike AccessoriesHole Spacing (Optional): 10cm/3.94", 12.5cm/4.92", 15cm/5.91" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bike Shock Absorber2 x Screw