High-quality shock absorbers are made of high-quality rubber and eco-friendly Pp (polypropylene) for excellent durability. The bottom layer is made of rubber, which has friction, non-slip and soft properties. The dual design protects the floor from damage when moving, shaking or walking. Secure equipment in place and reduce noise.Anti-slip function The shock absorber reduces noise caused by unstable washing machines or dryers. Significantly reduces vibration transmitted from the washer/dryer to the floor, thereby avoiding scratches, scuffs and abrasions. Protect household appliances from scratches and protect your floors.Easy to install, no tools or stickers required. Just lift each corner of the machine and slide the shocks into place.Versatile Each pillow can be overlapped to meet different height requirements. Suitable for washing machines, refrigerators, trolleys, washing machines, tumble dryers and sofas, tables, beds, etc. Quantity delivered: 4 pieces Product color: as pictured Product size: 10*4cm (width*height), inner diameter 5cm