product description Material: carbon steel Size: 40x52MM Color: black, white Shape: Cylindrical/Square Quantity: 4 Package Contents: 4* Wear-resistant furniture floor protection pads Double Layer Design: The upper layer is made of solid carbon steel and is super durable. Abrasion-resistant and non-slip, it protects the floor from damage when moving, shaking, or walking. Soundproof and easy to clean: Our washing machine vibration pad can absorb vibration and abnormal noise when operating household appliances, and protect the floor from scratches. In addition, it can raise the height of household appliances and furniture, protect them from moisture and facilitate cleaning. EASY TO INSTALL: No tools or messy adhesives required. Just lift each corner of the machine and slide the sound-absorbing pads into place. For added convenience, our pads are designed to fit all standard washer and dryer quads. EASY TO USE AND VERY APPLICABLE: This washer pad just needs to be placed to install.