Description: [Material]- This piano hinge is made of stainless steel with a coated surface, corrosion-resistant and rustproof, which touches smoothly and can be used for a long time. [Smooth & Quiet]- Built-in solid steel bars provide uniform strength and smooth pivot action. Nice welded and extremely silent ensuring that hinges open smoothly and quietly. [Easy To Install] - All holes are countersunk designed for convenient operation and easy to fix the screw. They provide more stability than traditional hinges, making them great for heavier doors. [Wide Application] - Continuous hinges are suitable for cabinet doors, wardrobe doors, piano hinge, window items, tool boxes, jewelry storage boxes, wooden boxes, and gift boxes. Specification: Material: Stainless steel Color: Black Length: 18" (450 mm), Width: 1.2" (30 mm), Hole Distance: 18mm x 50mm/ 0.7" x 2" Screw Hole Diameter: 4mm/0.15" Thickness: 0.04" (1 mm); Package Included: 4 x Continuous hinge 72x Screw 1x Black phillips screwdriver Hinsinc 4pcs 18 Inch Stainless Steel Piano Hinge with Screws Continuous Boat Hinge in Black