the FletaSturdy and Durable: Made of stainless steel, it is corrosion resistant and not easy to rust and deform, can be used for a long time Wide Applications: The hinges are suitable for installation on various types of doors, including built-in wooden doors/wooden doors. Suitable for both home and professional hinges. They are ideal for fixed room doors, entrance doors, bedroom doors, garden doors, fire doors, furniture doors, tool boxes, etc. Easy to Install: The package contains high-quality installation hardware for quick and easy installation. Comes with compatible screws that can meet your needs and can be completed in minutes Smooth Opening and Closing: The 4-inch door hinge adopts an improved design with a built-in bearing with a ball. After a quiet and silent process, the door is opened or closed without noise. The ball shaft design effectively guarantees a smooth and flexible door opening effect and a mute effect, and the door opens smoothly Fine Workmanship: Thickened panel molding, strong bearing capacity, wire drawing process on the hinge surface, stylish and beautiful, anti-corrosion and rust-proof and more durable, high-strength threaded shaft, flexibility can load transverse destructive force Specification: Material: Stainless Steel Size: 10 x 7.6cm / 3.93 x 2.99in Hole Distance: 3cm / 1.18in Hole Diameter: 6.4mm Kind Reminder: 1.Please confirm this is the size you want before placing an order 2.Please allow 1-3mm deviation due to manual measurement.