4PCS Stainless Steel Automatic Closing Spring Hinges, Self-Closing Foldable Concealed Door Hinges, Small Spring Hinges For Electrical Boxes, Wardrobes, Cabinets & Interior Doors, Smooth Silent Auto Return Hardware

1.5-inch (internal)

1.5-inch (external Mounting)

4-inch (internal)

4-inch (external Mounting)

3-inch (external Mounting)

2-inch (external Mounting)

1 Inch (external Mounting)

3-inch (internal)

2-inch (internal)

1 Inch (internal)