Wide opening angle: : After the hinge is installed, the opening angle up to 180 degrees. The hinge will not be exposed, nice appearance. Easy to open and close, less noise. Premium Material: : Concealed cross hinges made of stainless steel and zinc alloy, rust protection, corrosion resistance, durable and long service life. Large load capacity: : The hinge plate is improved and thickened, which improves the bearing capacity of the hinge and prevents the hinge from breaking due to excessive force. Large load capacity up to 13 kg. Wide application: : convenient to fix with a hole, cross hinge suitable for round corners, perfect for cabinet doors, sliding doors, etc. Widely used in hotels, clubs, wooden doors, counters or tables as well as perfect DIY materials for jewelry box, gift box or other wooden boxes. Four characteristics: : We offer four different sizes for you to choose from. You can choose the right size according to your needs. Description: Our concealed hinges are made of high quality zinc alloy, rustproof and corrosion resistant. Perfect for cabinet door, sliding door. Features: 1. Made of high quality stainless steel, rust and corrosion resistant, durable and sturdy to use, the service life up to 50,000 times. 2. Expand to rotate the door 180 degrees, without exposing the hinges. 3. Convenient to fix with one hole, cross hinge for round corner door, perfect for cabinet door, sliding door, etc. Features: Material: Stainless steel and zinc alloy. Color: silver.