1,Easy to Install: The Adjustable Round Riser is easy to install, which can be installed in one second. You can increase the height of one pad for your furniture, and no need to punch. 2,High-quality Material: The Furniture Risers Bed Lifters are made of high-quality Aluminum Alloy material, which is -made, durable, and not afraid of harsh humid environments. 3,Silicone Protection: The Aluminum Bed Riser is designed with silicone protection, which is shock-proof and non-slip, protects the floor from damage, and is not afraid of scratching the floor. 4,The aluminum alloy booster pad is made of high-quality aluminum alloy, which is not only anti-oxidations, also wear-resistant and durable. 5,This booster pad can stably heighten the washing machine, let it drain easily, and prevent the sewage in the drainpipe from stagnating or returning. Specification: Product Name: Aluminum alloy heightening pad size:23x37mm, height adjustable 23-42mm Material:Aluminum alloy + silicone colour:Gray Package Contents: 4 x Heightening Pads Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.