Features: The spring hinges are made of high-quality stainless steel, compact, durable, exquisite craft. Polished finish, do not rust. 4pcs of Double Action Spring Hinges for swing doors, both directions opening. Spring power adjustable, provide desired closing speed for a variety of swinging-door applications. The double hinge Suitable Door Thickness: 25mm~38mm, Safe working load: 10kg per hinge. Application: Cafe Saloon, Bar Counter Doors, Events Doors, Pub Swinging Doors. Specifications: Material: Stainless Steel Thickness: 1.5mm Plate Length: 101mm/4" Fit Door Thickness: 25mm~38mm / 0.98"~1.5" Single Bearing: 10kg Quantity: 2 Pairs (4pcs) Package Content: 4PCS 4" Double Action Spring Hinge (with screws)