Durable Furniture Risers: The upper layer of the bed risers is made of sturdy PP material, while the lower layer is composed of TPU rubber. The internal grid structure ensures long-term stability for the sofa risers, allowing them to support heavy furniture without wobbling. These risers are ideal for furniture with thick legs. Friction Reduction, Anti-Slip, and Shock Absorption: The anti-slip design of the top triangular cone prevents furniture from sliding. The TPU rubber lower layer protects floors, including both carpet and hardwood, from scratches and reduces vibration. Adjustable Design: The adjustable bed risers have three diameters that can be stacked for height adjustments and can be assembled to achieve a suitable height. They provide extra height, making it easier to get up, and are easy to install. These adjustable furniture risers instantly create extra storage space under the bed and are easy to clean. Wide Application: Full edges enhance stability and allow you to increase the height of furniture without worrying about mismatches. These heavy-duty furniture lifters can be used to elevate beds, sofas, chairs, cabinets, tables, refrigerators, and other household items. Included: The package includes four double-layer risers (split sides) and four TPU rubber pads for the bottom of the risers.