High Quality MaterialsSet of 4 Adjustable Riser Bed Legs made of durable and durable rigid plastic that can support the weight of the heaviest furniture in your home or office and safely support up to 2000kg ( 4400 pounds). They don't creak like other bed risers. High-density felt bottom glides protect your hardwood, ceramic, linoleum and carpet floors from scratches and scuffs. Riser Table Legs with Screw ClampThe grip of other stool boosters is not enough, they can easily fall off. To solve this problem, we have improved the adjustable bed heights with screw clamp. Use screw clips to adjust the fixation, wrapped furniture legs are not easy to fall off. Adjustable Width4 inch booster chair legs. Suitable for round or square legs with a width of 22mm/0.8' to 42mm/1.6". Total height: 134mm/5.3in, Actual High Height: 103mm/4inch. NOTICED : Not suitable for slanted furniture legs. Create Useful SpaceNot only storage space under beds, but also extra height for vacuum cleaners or robotic vacuum cleaners to work more flexibly. They also make it easier for older people to get in and out of bed. Increase the height by 100mm on beds, sofas, armchairs, tables and other heavy stationary furniture to avoid shoulder and neck pain caused by low furniture height.