Dimensions: inside diameter: 4.8 cm Height: 1.6 + 3.3cm fits the shock absorbers of most brands of washing machines and major household appliances. Secure devices in place and reduce noise as well. Quality: Double design, the top layer is made of sturdy PP (polypropylene) with high durability. The bottom layer is rubber with friction, anti-slip and soft properties which can protect the floor from damage when moving, shaking or walking. Anti-slip function: The strength of the micro-grip mode of the shock absorbing pad completely eliminates the movement of the floor of the washing machine or dryer and considerably reduces the transmission of vibrations from the washer / dryer to the floor, thus avoiding scratches. Scratches and abrasions. The device itself will not be damaged in any way. Multifunctional: Anti-vibration pillows can eliminate scratches, scrapes and abrasions and effectively protect any floor surface. Each pillow can be stacked to meet different height requirements. It is suitable for washing machines, refrigerators, carts, washing machines, clothes dryers and sofas, table, bed, etc. Easy to install: no tools or dirty glue required. Simply lift each corner of the machine and slide the sound absorbing pad into place.