Size: inside diameter: 4.8 cm height: 1.6 + 3.3cm fits most brands of heavy equipment washing machines and shock absorbers. Secure the equipment in place and reduce noise. High quality: 4 sets of shock absorbers are made of high quality rubber and environmentally friendly PP (polypropylene), with excellent durability. The bottom layer is rubber with friction, anti-slip and soft properties. The double design can protect the floor from damage when moving, shaking or walking. Sliding function: The shock absorber can reduce noise caused by instability in the washer or dryer. The transmission of vibrations from the washer / dryer to the floor is greatly reduced, preventing scratches, scratches and abrasion. Protect home appliances from scratches and protect the floor. Easy to install: No tools or stickers are required. Simply lift each corner of the machine and slide the shock absorber into place. Multifunction: Each pillow can be stacked to meet different height requirements. It is suitable for washing machines, refrigerators, carts, washing machines, tumble dryers as well as sofas, tables, beds, etc.!.