[SIZE&PACKAGE]: Hinge Size: 89.5 x 77.5mm/3.52" x 3.05"(L*W); Shaft Length: 24mm/0.94"; Hinge Hole Diameter: 7mm/0.28"; Package: 1Set Pivot Door Hinge [MATERIAL]: The pivot door hinges are made of 201 stainless steel, which is wear-resistant and not easy to deform, with fine workmanship, corrosion-resistant and not easy to fade. They are sturdy and durable, with the advantage of long-term use [DESIGN]: The door hinge has a strong load-bearing capacity, operates quietly, and allows the door to be opened and closed smoothly. Depending on the installation position of the hinge, the angle at which the door can be opened will vary. If the hinge shaft is exposed outside the door frame after installation, the door can be opened 180 degrees, and 90 degrees inside the door frame [INSTALLATION]: Reserve the installation position and appropriate spacing of the hinge, and fix the upper and lower hinges with screws. It is also possible to cut grooves in the door and door frame installation