Curved Offset Shutter Hinges provide more mounting options than standard butt or Parliament hinges. The shutter hardware is made of heavy, thick cast iron and not stamped steel. Removable pin allows the shutter to be removed easily. Multiple uses and configurations: edge or surface mount or combine the two. 3" tall by 5" wide when open. Typically provides 2.5" of throw when edge mounted or 1.25" when surface mounted.