Material: copper This flush hinge is made that is sturdy and strong. The anti-rust surface of the hinge ensures anticorrosion and durability of the product. Thickened panel and large force zone provide lift performance. Flexible and won't squeak when you open or close the door; hinges used to enhance the beauty of miniature products. Double action spring loaded bar counter door free doors, bar counter doors, lounge and cafe doors with dual door function hinges These ball bearing hinges can fit most types of doors, suitable for kitchen cabinets, wardrobes and wardrobes. Color: Big Material: Copper Model: H hinge Specifications: hinge H (large) 70 * 50 * 2.4 Surface treatment: wire drawing sealant glaze Note: During the installation process, the hinge pins on the same door must be on the same vertical line to prevent doors and windows from bouncing