s Set of 4 adjustable riser bed legs made of durable rigid plastic that can support the weight of heavy furniture in your home or office and safely hold up to 2000 kg (4400 pounds). These risers do not creak like other bed risers. High-density felt bottom glides protect hardwood, ceramic, linoleum, and carpet floors from scratches and scuffs. Riser Table Legs with Screw Clamp The grip of standard stool boosters is often insufficient, causing them to slip off easily. To address this, these adjustable bed risers feature a screw clamp design. Use the screw clips to securely fasten the risers, ensuring furniture legs remain stable and do not slide out. Adjustable Width 4-inch booster chair legs. Suitable for round or square furniture legs with widths between 22 mm (0.8 in) and 42 mm (1.6 in). Total height: 134 mm (5.3 in). Effective lift height: 103 mm (4 in). Note: Not suitable for furniture with slanted legs. Create Useful Space Gain extra storage space under beds and increase clearance for vacuum cleaners or robotic vacuums to move freely. These risers also assist older individuals by making it easier to get in and out of bed. Raise beds, sofas, armchairs, tables, and other heavy stationary furniture by approximately 100 mm to help reduce strain and discomfort caused by low furniture height.