Black Plywood (Fits 10-37mm) Pack of 4 Adjustable Furniture Legs - 50mm Not easy to fall down Our chair lift and table legs with adjustable screw clamps on the rail, securely fix the frame with clamp brackets, which will not fall down when lifting and moving furniture. Unlike other furniture risers with grooves but no clamps, any small movement will cause the riser to become unstable and fall off the furniture legs. Protect your hard surface The bottom is equipped with felt pads. Daily use and moving furniture can damage hard floors. These furniture risers will protect your hardwood, ceramic and linoleum floors from damage and scratches. Product Description Are you worried about not having enough storage space in your apartment? Or are you having a hard time getting up from a low bed? Not suitable for slanted furniture legs Not stackable Furniture lift with adjustable width and felt base Made of durable plastic High-density felt furniture pads protect your hardwood, tile and linoleum