Product Material: carbon steel Size: 40 x 52 mm Color: black, white Shape: cylindrical, square Quantity: 4 pieces Package content: 4 * wear-resistant furniture floor protection board 1. Double Design: The top layer is made of strong carbon steel, which is very durable. It is anti-friction, non-slip and can protect the floor from damage when moving, shaking or walking.2. Noiseproof and Easy to Clean: Our washer vibration pads can absorb vibration and abnormal noise when operating household appliances, and protect the floor from scratches. Besides, it can increase the height of household appliances and furniture to protect them from moisture, which makes cleaning convenient.3. Easy to Install: No tools or messy glues required. Simply lift each corner of the machine and slide the noise deadening pads into place. To make it even more convenient, our pads are designed to fit all standard washing machines and dryers on four legs.4. Easy to Use and Wide Application: These washing machine pads can be installed simply by placing. They are suitable for many household appliances and furniture, such as washing machine, refrigerator, dolly caster, washing machine, dryer, sofa, table, bed and so on