[Product weight]: The weight of each model is different, calculated according to the model aligned with the model Standard sizes: 1 size:Spring Clearance: 47mm Spring Thickness: 13mm Spring Diameter: 173mm 2 sizes:Spring Clearance: 35mm Spring Thickness: 13mm Spring Diameter: 160mm 3 sizes:Spring Clearance: 27mm Spring Thickness: 10mm Spring Diameter: 131mm 4 sizes:Spring Clearance: 23mm Spring Thickness: 10mm Spring Diameter: 113mm 5 sizes:Spring Clearance: 15mm Spring Thickness: 9mm Spring Diameter: 112mm 6 sizes:Spring Gap: 12mm Spring Thickness: 15mm Spring Diameter: 120mm [Applicable] All private cars, commercial vehicles, off-road vehicles, and vans are common. Product Performance: 1. Adopting the principle of cushioning, the shock-absorbing performance is obviously improved. The shock absorption effect can improve the ride comfort of the car to a higher level, especially when passing through pits and ridges. 2. The stability is significantly improved when passing non-asphalt roads, bumpy roads, and sharp turns. 3. Restrain the vibration of the car body due to uneven road surface during driving, thereby reducing the vibration noise during driving. 4. Appropriately increase the height of the car body to improve the passing performance of the car on road obstacles. 5. Protect the shock absorber and suspension system, prolong the life of the automobile shock absorber, and prevent the shock absorber spring oil seal from being damaged due to excessive turbulence. installation method: 1. Use a jack to jack up the wheel and hang it in the air 2. Wipe the shock-absorbing spring with clean water (wipe it several times), to ensure that the spring is clean and free of sand and gravel, which will reduce the life of the shock absorber. 3. Apply soaked soap on the shock-absorbing spring, and apply soaked soap in the groove of the strong buffer wash your hands, and install the strong buffer into the spring (install the upper slot first, then install the lower slot, you can also install half of the upper and lower slots first, and then rotate and install the rest until all the springs are in the slot, and the excess part can be cut off with a knife). 4. Finally, after installation, turn the notch to the middle of the inner side, make sure that the springs are in the groove, and then the body can be put down. Product without packaging weight: 1.55kg or 1.7kg or 1kg or 730g or 780g or 440g or 360g or 400g color: red Material: rubber Quantity: 1set Packing list: 1 pair of car shock absorber buffer rubber (without box) Only the above package contents are included, other products are not included. Note: Reflection of light and different monitors may cause the item's color to be slightly different from the actual item. Measurements allow 1-3 cm.