General description Made of high-quality zinc alloy, these CSPARKV 4Pcs Zinc Hinges are corrosion-resistant and designed for long service life. The brushed surface is smooth, making them suitable for both indoor and outdoor use. With a 270-degree rotation angle and built-in single ball bearing, these hinges ensure flexible and smooth operation while reducing noise during opening and closing. Technical specifications Material: Zinc alloy Dimensions: 40x40x5mm Rotation angle: 270 degrees Installation Mark the mounting holes on the door frame using a tool. Align the hinges with the marked positions. Use an electric drill or screwdriver to tighten the screws and securely fix the hinges to the door frame. Usage These hinges are versatile and can be used for various applications, including doors and windows, wardrobes, shoe cabinets, retro wooden boxes, wooden jewelry boxes, furniture, and crafts. They are ideal for securing home doors, entrance doors, bedroom doors, garden doors, fire