Cross Door Hinges Concealed Door Hinges Zinc Alloy Hidden Door Hinges. Features: 180 degree open angle gives the users more convenience and comfort. Perfect invisibility can make the entire environment more harmonious. Easily install and simply adjust only with an inner hexagon spanner. Have the characters of anti-fire, anti-smoke, rustproof, damp-proof, anti-friction and environmental protecting. High quality material,durable and elegant. Fashionable and simple appearance. Suitable for wooden door, entrance door, anti-fire door, anti-theft door, swing door, metal door, aluminum door. Specifications: Cross Door Hinges Concealed Door Hinges Zinc Alloy Hidden Door Hinges; Material: zinc alloy, chromium plating, stainless steel 304 in connector; Type: Cross type concealed door hinge.; Size: 44X35mm; Gap: 11.5mm; Opening angle: 180 degree; Installation: disregard left hand and right-hand; Color: Sliver; Scope: Cabinets, Wardrobes , Bathroom Cabinets , Shower Room , Office And Other Furniture Handle. Package included: 1x Cross Door Hinges, 4x Screw.