Adjustable Clamp SystemSet of 4 4 inch furniture riser and table riser, increase the height by 100mm. The table leg extension is suitable for desk legs with a thickness of 0-1.5 inches (0-38 mm). You can adjust the distance as you like on your furniture frame and tighten with a screwdriver provided. Not Easy to Fall offOur Riser chair legs and table with rail adjustable screw terminal hold the frame firmly using the clamp bracket and won't fall off from lifting and moving furniture. Unlike other taller furniture with grooves without a clamping device, every slight movement can cause the risers to become unstable and fall off the furniture legs. black or brown furniture, Space saving risers for bed, table and sofa, heavy furniture risers for bathroom cabinets, desk. Creates an additional 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 RisersMade from sturdy materials, these furniture risers are super strong and durable. 4 handsets can easily lift up to 4400 pounds (2000kg). Not only good for lifting beds and mattresses, but also ideal for lifting bedside tables, sofas, tables, desks, cabinets and shelves at home and in the office, they make your leg freedom more comfortable . Protect your hard surfacesDesign with felt pads on the bottom. Daily use and moving furniture can damage your hard floor surfaces. These furniture risers protect your hardwood, ceramic and linoleum floors from damage and scratches. If you also have other furniture legs / table legs, cabinets and desk. Product Description 4 Pack 2 or 4 inch Furniture Risers with Clamp Screw Adjustable, Booster Chairs Perfectly Solve Your Problem. Are you worried that your apartment is not equipped with enough storage space? Or do you have trouble getting up from the low bed? Not suitable for sloping furniture thighs Not stackable Adjustable width furniture risers with felt bottom Made of durable plastic Supports up to 10,000 lbs of weight High-density felt furniture pads protect your floors from hardwood, ceramic tile and linoleum from scratches and scuffs. Use a screw clamp to adjust the fastening, wrapped furniture legs are not easy to fall off. Adjustable sofa riser made from durable hard plastic that can safely support a total of 10,000 lbs. The extra height not only creates usable space under beds, but also allows for vacuums or robot vacuum cleaners to operate more flexibly. Provides you with more comfortable height and leg room. Easy to install - Adjustable groove width - equipped with installation tools Tips: Suitable for width 0 .39 inch (10 mm) to 1.5 inch (38 mm) Step 1) Clean the table leg and keep it dry. Step 2): chair legs center Step 3) Use a bolt to lock. Step 4) done. Protect the floor from scratches The pads high density felt furniture pads protect your hardwood, ceramic tile and linoleum floors from scratches and scuffs. Strong loading capacity They are made of plastic durable hard that can withstand the weight of the heaviest furniture in your home or office. Reusable Fits most furniture legs, no worries about warping, mildew, rust like wood or steel furniture lifters!