The Baldwin 1040 056I 4 x 4 Mortise Square Door Hinge in Satin Nickel is a high-quality residential door hinge suitable for various types of doors such as internal, front, front entrance, security, and shed doors. Made of brass and nickel, this hinge features a decorative Estate style finish in Satin Nickel. It is designed for easy installation with fixings supplied and is a single-pack item from the trusted manufacturer Baldwin Hardware. With a hinge length of 4 inches and a door mount mounting type, this product is a durable and stylish addition to any home improvement project involving doors and door hardware.