This semi-circular hinge set is made of high-quality zinc alloy, offering high strength and durability. It features a 90-degree opening angle and lies flush when open, making it ideal for desktop applications. The built-in hinge includes 3D adjustable accessories for lids and wooden doors, with a load capacity up to 10 kg. These folding hinges are suitable for use in kitchens, bedrooms, cabinets, cupboards, and other small furniture. The 90-degree opening and closing mechanism ensures ease of use and compatibility with cabinets or hinged door wardrobes. Designed for reliability, the hinge withstands over 50,000 opening and closing cycles. It offers a concealed, flush-mounted design with no protrusions when open. The hinge supports 180-degree opening and is ideal for wooden tabletops and flat folding applications. Material: Zinc alloy. Installation method: Full overlay.