Usage Tips: 1. THICK MATERIAL Made of high-grade 201 stainless steel with a polished brushed surface, offering good acid and alkali resistance. The stainless steel self-closing hinge is resistant to rust, provides strong load-bearing capacity, and ensures long service life. 2. EASY TO INSTALL Includes saloon door spring hinges and matching screws. Safe working load is 16.5 lbs per hinge. Fits door thickness of 0.78–1.2 inches. 3. TWO-WAY OPENING Double swing door hinges allow 180-degree opening in both directions. Adjustable spring tension enables control over closing speed, reducing slam noise. 4. WIDE APPLICATION Suitable for various doors including wooden or metal saloon doors, cafe doors, bar counter doors, pub swinging doors, kitchen doors, or gates in shops and malls.