90-degree rotation. 4mm thick stainless steel will not rust. Resists scratches, corrosion, and rust. Automatically closes from a 25-degree angle and automatically centers at 0 degrees in the stopped position. The glass door automatically closes from a 25-degree angle and automatically centers at 0 degrees in the closed position. The bathroom glass door hinges are made of high-quality stainless steel to ensure quality and longevity. Note: Suitable for glass thicknesses of 8-12mm. Each hinge has a maximum load capacity of 18kg and requires no drilling; it is used for various display cabinet doors, display cases, and cake display doors. Package: 2 hinges, 4 expansion screws and bolts, and 1 hex wrench.