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 made of rubber with friction, non-slip and soft properties. The double design can protect the floor from damage when moving, shaking or walking.Non-slip function: the shock absorber can reduce the noise caused by the instability of the washing machine or dryer. Significantly reduce vibration transfer from the washing machine or dryer to the floor and avoid scratches, scratches and abrasion. Protect household appliances from scratches and protect your floors.Inner diameter:4.8cm Height:1.6 and 3.3cm Suitable for most brands of washing machines and shock absorbers for large appliances. Attach the devices in place and also reduce the noise.Easy to install: no tools or stickers required. Simply lift each corner of the machine and slide the shock absorber into position.Multifunctional: each cushion can be overlapped to meet different height requirements. It is suitable for washing machines, refrigerators, trolleys, washing machines, tumble dryers and sofas, tables, beds etc