The double hinge is made of high quality zinc alloy, the thick arm shank ensures that the hinge is sturdy and durable. It also has a long life with resistance to wear and corrosion. Free Your Hands Use the cover hinges to keep the cabinet door or cover open until '' whatever you want to close, free your hands to access your cabinet, trunk, etc. A great choice for your kitchen, window seat, etc. Adjustable Ension Adjustable door hinges allow to accommodate different door sizes and different tightening tensions you need. Max 8.9 kg The cover support hinge is designed to support the cover or flap weighing less than 8.9 kg for toy room, treasure chest, cabinet, cupboard, window seat and cabinet . 2 Ways Of Installation Press the small clip of the cover bracket hinge then move it past the center, it can go to the opening up (the hinge gives resistance when closing) or down (the hinge gives resistance when opening), which is wide application in your home. Note: due to the manual measurement, please allow 0-3cm difference. Thanks for understanding. The monitor calibration method is different. The color of the product shown in the photo may be slightly different from the actual product. Please refer to our size before ordering. Delivery quantity: 1 piece