Durable Furniture Riser: The upper layer of the bed riser is made of strong PP material, and the lower layer riser is made of TUP rubber. The internal grid structure maintains the long-term stability of the sofa riser. Holds your heavy furniture easily without wobbling. Ideal for furniture with thick legs. Reduce Friction, Anti-Slip and Shock Absorption: The anti-slip design of the top triangular cone avoids furniture sliding around, and the TPU rubber lower layer design protects floors from scratches, including carpet and hardwood floors, and reduces vibration. ADJUSTABLE DESIGN: Adjustable bed risers 3 diameters can be stacked for height adjustment, can be assembled to a suitable height. Sofa risers can provide extra height to help get up and are easy to install. The table system"s adjustable furniture risers instantly create extra storage space under the bed and are easy to clean. Widely Applicable: The ""L"" side makes it more stable to increase the height of furniture, don"t worry about furniture mismatching. The heavy duty furniture lifter can be used to lift beds, sofas, chairs, cabinets, tables, refrigerators and more household items. Packaging and after-sales service: including 4 double-layer risers (half sides), 4 TPU rubber pads for the bottom of the risers.