General description The CCYKXA 4 Pieces Invisible Hinge Inset Door is designed for 90/180 degree folding shelf applications, making it an ideal choice for various furniture types such as kitchen cabinets, cupboards, TV cabinets, bookcases, and wine cabinets. These hinges help you easily organize your furniture, save space, and maintain order. Technical specifications Material: Cold rolled steel with copper and nickel plating Weight capacity: Up to 10 kilograms Hinge types: 90 degree and 180 degree Included: 4 hinges and 16 screws Installation Can be installed as half hinges or full hinges without drilling holes Installation should begin after determining the method and marking the position Usage Suitable for upward-opening and downward-opening cabinet doors Applicable for cabinet doors, bookshelves, tatami or folding table supports, and recessed cabinet hinges