• The kit includes 2 complete sets: each with 2 nuts, 4 screws, 2 flat guides, and 2 rubber pads • The crescent-shaped nuts have an opening length of 15 mm, an outer diameter of 50 mm, and an inner diameter of 31 mm • Designed for single-hole faucets with an inner diameter of 31 mm • Made of high-quality copper, providing long service life and reliable performance • Solid, durable, and more economical installation • Allows you to easily secure the faucet without needing to replace it if it is loose • The C-shaped nut is inserted directly into the faucet tube for quick and convenient installation • You only need to tighten the screw to secure the faucet • Ideal for kitchen and bathroom applications, suitable for securing household faucets