General description Adjustable Bed and Furniture Risers are designed to elevate your furniture, providing additional height for better accessibility and storage. Made from durable hard plastic, these risers can support up to 20,000 lbs, making them suitable for the heaviest furniture in your home or office. The innovative screw clamp design ensures that the risers stay securely in place, preventing any accidental falls. Technical specifications Material: Hard plastic Weight capacity: Up to 20,000 lbs Adjustable leg diameter: Fits square/round chair leg diameter from 0'' to 1.5'' (0mm to 37mm) Total height: 134mm (5.3 inches) Actual increased height: 103mm (4 inches) Side length: 52mm (2 inches) Installation Step 1: Clean the table leg and keep it dry. Step 2: Align the chair legs to the center of the riser. Step 3: Use a hex screw to lock the riser in place. Usage These risers are ideal for increasing the height of beds, sofas, armchairs, tables, and other heavy stationary furniture.