Security Door Guard - Solid Brass SIZE Jamb Plate 1 in x 2 625 in 25x67mm Arm Length Center of Rivets / Jamb Plate to End of Arm 4 625 in 117mm Strike Plate 1 187 in x 1 187 in 30x30mm Stike Lenght 3 062 in 78mm FEATURES Baldwin s security door guard allows the door to be opened up to four inches while maintaining security This solid brass security door guard hinges onto a strike mounted on the door eliminating scratching normally caused by conventional chain door fasteners When not in use the hinged door guard is positioned 180 degrees away from the door - Buy Now or get More Info on Baldwin Hardware - Click Here To Order