1. This set of semi-circular hinges is made of high-quality zinc alloy, which offers high strength and durability. The opening angle is 90 degrees, and the hinge is recessed when open, making it very suitable for office applications.2. The 90-degree opening and closing mechanism makes it very convenient to use and suitable for cabinets or drop-down doors. It is a reliable product with over 50,000 opening and closing cycles.3. Integrated hinge, adjustable accessories, used for wooden flaps and lid, supports up to 10 kg4. Round folding wooden hinges, concealed double-cup hinges, fully opening and hinged cabinet doors, lift-up hinges, drop-down hinges5. Folding hinges are suitable for kitchens, bedrooms, wardrobes, cabinets, and other small furniture. Concealed 90-degree double-cup hingeAdjustable concealed cabinet door hinge with 90-degree page rotation axisConcealed hinges for adjustable cabinet doors with a 90-degree rotation axis, special under-desk hinges, flat hinges, cabinet hingesThis set of semi-circular hinges is made of high-quality zinc alloy, offering high strength and durability. The opening angle is 90 degrees and the hinge sits flush when open, making it ideal for office applications.The 90-degree opening and closing mechanism is very convenient to use and can be used with cabinets or drop-down doors. It is a reliable product with over 50,000 hours of opening and closing service.Integrated hinge, adjustable accessories, used for hinged lids and wooden parts, supporting up to 10 kgRound folding hinges for wooden tables, concealed double-cup hinges, complete door hinges, lifting hinges, drop-leaf hingesFlat folding hinges are suitable for small furniture such as kitchens, bedrooms, wardrobes, cabinets, etc. 90-degree double-cup concealed zipper waist designSemi-circular double-leaf top and bottom doors, can openers, folding hinges, folding lockers, concealed top and bottom hinges, full-cover hinges, special self-supporting table hinges, semi-circular hinges, wooden folding table hinges, round hinges, and hinges for both sides. Material: zinc alloy. Thickness: 13mm. Maximum load: 10kg / 2pcs. Size: Length * Width: 6.5 * 4cm, Thickness: 1.3cm. Suitable for folding cabinets, wardrobes, bedroom furniture, and kitchen cabinets. 90-degree double-cup concealed zipper waist designThickness: 13 mm Maximum load: 10 kg / 2 pieces Size: Length * Width: 65 mm * 40 mm, Thickness: 13 mm, Bottom double cup opening: 35 mm, Suitable for folding kitchen and bedroom cabinets, wardrobes and furnitureConcealed adjustable 90-degree door hingeBuilt-in hinge, adjustable accessories, used for wooden flaps and lids, load capacity up to 10 kgRound hinges for folding wooden tables, concealed double-cup hinges, complete door hinges, lifting hinges, drop-leaf hingesFlat folding hinges are suitable for small furniture such as kitchens, bedrooms, wardrobes, cabinets, etc.Quantity: 2 pieces