Bosvision Key-Guard combination key storage lock box Allows keys and valuables to be locked away and accessed using a security code Suitable for a range of situations, including property management, building sites, children after school, outdoor activities, marinas, car services and security Designed with hardened steel shackle so can be secured to a fixed pole or rope Strong zinc alloy casing and dials with 3/8 shackle Compact size to keep 5 keys Contractors Real Estate Agents or Real Estate Listings Use with Medical Alert Device to Avoid Door Damage in Case of Emergency Property Management Key Lock Box Easy Access for Maintenance or House Cleaning Crews Shackle size: 10mm Size: W 59.5, D 19, H 134.2mm Inner size: 82 x 35 x 16 mm