Material: Replacement furniture legs are made of aluminum alloy, with an anodized surface that resists fading and rust for long-lasting durability. Protection: These furniture legs help protect your floors from scratches and reduce noise when moving furniture. Heavy Duty: The 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: The height can be adjusted by rotating the base to compensate for uneven flooring. Adjustable range is 0-8mm. Size Chart: Diameter: 5cm / 1.97 inch 6cm leg: Adjustable height 5.6–6.4cm / 2.20–2.52 inch 8cm leg: Adjustable height 7.6–8.4cm / 2.99–3.31 inch 10cm leg: Adjustable height 9.6–10.4cm / 3.78–4.09 inch 12cm leg: Adjustable height 11.6–12.4cm / 4.57–4.88 inch 15cm leg: Adjustable height 14.6–15.4cm / 5.75–6.06 inch 18cm leg: Adjustable height 17.6–18.4cm / 6.93–7.24 inch 20cm leg: Adjustable height 19.6–20.4cm / 7.72–8.03 inch 25cm leg: Adjustable height 24.6–25.4cm / 9.69–10.00 inch Package Includes: 4 sofa legs Note: Please allow slight variations due to manual measurement and differences in display monitors.