【Adjustable Chair Leg Width】Bed and furniture risers are suitable for use with round or square leg diameters (1-3.7cm). Total height: 5cm, actual raised height: 5cm, side length: 7.5x5.5cm. Hard plastic material: The adjustable furniture risers are made of strong and durable hard plastic that can bear the weight of the heaviest furniture Whether at home or in the office, they can safely support up to 20,000 pounds. They won't break like other risers. High-density felt pads protect your hardwood, ceramic and linoleum floors from scratches and scuffs 【Upgraded screw clamp ensures secure hold and won't fall off】You don't have to worry about the bed riser falling off. Other risers don't have enough support and can easily fall off. To solve this problem, we designed the adjustable bed riser with screw clamps to prevent tipping when moving. Use screw clamps to adjust and fix, so that the wrapped furniture legs will not fall off easily. Adjustable sofa/couch/table/desk risers are easy to