Dimensions: inner diameter 4.8 cm Height: 1.6 + 3.3cm fits most brands of washing machines and shock absorbers for large appliances. Secure devices in place and also 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. Anti-slip function The shock absorber can reduce the noise caused by the instability of the washing machine or dryer . Dramatically reduce the transmission of vibrations from the washer / dryer to the floor, avoiding scratches, scrapes and abrasion. Protect home appliances from scratches and protect your floors. Easy to install no tools or stickers required. Simply lift each corner of the machine and slide the shock absorber into place. Multifunctional Each pillow can be stacked to meet different height requirements. It is suitable for washing machines, refrigerators, carts, washing machines, tumble dryers and sofas, tables, beds, etc.!.