Material: Replacing furniture legs are made of aluminum alloy, with an anodized surface that resists fading and rust for long-lasting durability. Protection: The furniture legs help protect your floor from scratches and reduce noise when moving furniture. Heavy Duty: Aluminum alloy construction provides strong support for various types of furniture and helps elevate height as needed. Wide Application: Suitable for sofas, cabinets, coffee tables, beds, bathroom cabinets, dining tables, and more. Screw hole size is 10mm. Adjustable Height: Height can be adjusted by rotating the base to compensate for uneven floors. Adjustable range is 0–8mm. Size Chart: Diameter: 5cm / 1.97 inch 6cm Adjustable height: 5.6–6.4cm / 2.20–2.52 inches 8cm Adjustable height: 7.6–8.4cm / 2.99–3.31 inches 10cm Adjustable height: 9.6–10.4cm / 3.78–4.09 inches 12cm Adjustable height: 11.6–12.4cm / 4.57–4.88 inches 15cm Adjustable height: 14.6–15.4cm / 5.75–6.06 inches 18cm Adjustable height: 17.6–18.4cm / 6.93–7.24 inches 20cm Adjustable height: 19.6–20.4cm / 7.72–8.03 inches 25cm Adjustable height: 24.6–25.4cm / 9.69–10.00 inches Package Includes: 4 x Sofa Legs Note: Please allow slight variations due to manual measurement and differences in monitor displays.