Ours 3/8" Inset Hinges have standard 3/8 inch overlay inset cabinet hinges designed for 3/8" inset cabinets only, and are good replacements for your original 3/8" doors. The overall length of the matte black cabinet hinge wing is 2-3/4"(70mm), The hole center of the cabinet wing is 2-1/8"(54mm). The cabinets are made of 1.5mm thick rustic stainless steel metal, a heavy-duty solid and robust material. This heavy-duty metal is used to connect your cabinet door sturdily. And the hinge has a spring making it self-closing once it is gently pushed, safe, and quiet. It can be widely used in kitchens, bathrooms, and other face-frame cabinets or doors.