This is a set of three Ives Heavy Weight 5BB1 619 Hinges, measuring 4.5"x4.5" with a .959 radius and four holes. These hinges are made of stainless steel and are designed to be heavy duty, perfect for doors in need of extra support. They are labeled as open box, but rest assured they are in excellent condition and ready to be installed. The brand is Ives, a trusted name in hardware, and the hinges are specifically designed for heavy duty use. They are ideal for use in the home or for building and hardware projects.