【Adjustable Clamp System】4 Pack 2 inch furniture riser and table increaser, increase the height by 50mm. The table leg extension is suitable for desk legs with a thickness of 0 to 1.5 inches (0-38 mm). You can adjust the distance as desired on your furniture frame and tighten with a screwdriver provided. 【Not Easy to Fall Off】Our chair and table leg risers with adjustable rail screw terminal hold the frame firmly with the clamp bracket and do not fall off when lifting and moving furniture. Unlike other higher furniture with grooves without clamping device, every slight movement can make the risers unstable and fall off the furniture legs. 【Increase Height by 2 inches】Set of 4 black or brown furniture legs, space-saving risers for bed, table and sofa, heavy furniture risers for bathroom cabinets, desk. Creates an extra 4 inches of storage space under the bed. Raise your bed, making it easier to clean under furniture, especially good for robotic vacuum cleaners. 【Heavy Duty Bed