New and high-quality material: Steel. Inner width: 12 cm/4.72 inches. Adjustable height: 47-57 cm (18.50-22.44 inches), 53-63 cm (20.87-24.80 inches), 59-69 cm (23.23-27.17 inches). Quantity: 1 piece. Features: - Sturdy material: Made of quality steel, this undermount sink bracket is designed for long-lasting durability and wear resistance, ensuring it can withstand regular use in the kitchen or bathroom. - Adjustable design: With an adjustable screw design, the support rods for the sink bracket allow you to adjust the length and extension, making it versatile to fit various sink sizes and configurations. - Improved base design: The improved large base design of the sink installation bracket provides greater stability and durability, and offers reliable support for the sink setup. With an inner width of 12 cm/4.72 inches, easy installation: The sink installation bracket kit is portable and easy to install. Simply place the under-sink bracket in the desired location, adjust it to the appropriate height, and tighten the lock for a secure fit. Wide applications: This undermount sink bracket is suitable for sinks with different drain diameters, such as countertop sinks, ceramic sinks, double kitchen sinks, small kitchen sinks, farmhouse sinks, and more. Notice: 1. The actual color of the item may be slightly different from the pictures shown on the website due to many factors such as monitor brightness and light brightness. 2. Please allow slight manual measurement deviation in the data. Thank you for your understanding. 3. 1 cm = 0.39 inches. Package includes: 1 set of undermount sink brackets. Seller warranty: 30 days