Features: 1. STURDY STEEL MATERIAL: Adjustable furniture risers made of heavy-duty solid carbon steel, designed to support the weight of heavy furniture in your home or office. Durable construction helps prevent cracking compared to other risers. 2. SCREW CLAMP FIXING: Equipped with screw clamp adjustment for secure fit. Wraps around furniture legs to help prevent slipping. Suitable for use with sofas, couches, tables, and desks. Easy to install. 3. ADJUSTABLE WIDTH: Adjustable width range from 1 to 3.7 cm. Available in 5 cm and 10 cm height options to suit various furniture types. 4. INCREASED HEIGHT: Provides additional clearance under furniture, creating more under-bed storage space. Increased height allows easier access for vacuum cleaners and robot vacuums. Offers improved accessibility for elderly users when used with beds. 5. FLOOR PROTECTION: Designed with smooth edges to help protect hard floors from scratches, dents, and scuffs. Compatible with hardwood, ceramic tile, and linoleum flooring. Specifications: Material: Plastic Color: Black, Brown Size: 5 cm, 10 cm Weight: 180 g, 305 g, 360 g, 610 g Package Included: 2 or 4 x Adjustable Furniture Risers