General description High-quality concealed cabinet door hinges made from sturdy cold-rolled steel, resistant to wear and deformation. The nickel-plated surface provides a shiny finish while being anti-corrosion and anti-rust, ensuring long-lasting use. These hinges are designed for both full and half cover installations, offering versatility for various applications. Technical specifications Material: Cold-rolled steel Color: Silver Size: 165 x 18 mm Screw size: 16 mm Opening angles: 90 degrees, 180 degrees Installation Easy to install with included screws, no drilling required. Install using a screwdriver. Ensure the toothed end of the hinge is mounted on a fixed wooden board. Refer to the provided images for installation guidance. Usage Suitable for cabinet doors that open upwards and downwards. Ideal for kitchen cabinets, TV cabinets, bookcases, and various boxes. Also applicable for tatami mats, flying wing RVs, and folding desks. Designed for smooth operation with no noise during