Made from high-quality stainless steel and brass, the Command Ratchet Hinge is great for sunpads, bolsters, and lounge backrests. This heavy-duty hinge has a 15-degree locking inclination and easily ratchets up to four positions for comfortable seating. It features polished marine-grade stainless steel type 316L and brass bearings. The ratchet hinge meets ABYC H-31 standards class B application. Designed for up to 4"-thick cushions, it is countersunk for a #10 fastener or 1/4"-20 bolt. The Command Ratchet Hinge comes with a 5-year limited warranty. Sold in pairs (1 each is 1 pair).