Master Lock Company Prtble Cmbntn Lock Box, 9/32"D,11/16" Side to Side 13/16",GY - Portable lockbox features an easy-to-grip, dome-shaped dial with slick metallic finish. Offers strong, die-cast zinc construction with hardened steel shackle for extra resistance. Shackle diameter measures 9/32" while shackle clearance top to bottom, 11/16", and side to side 13/16".