4 pre-drilled holes for installation. Key locking system. Constructed of 22-gauge steel. Securely holds 240 keys. 4 rows of numbered hooks and hinged divider. Weight: 17.85 lbs.. Dimensions: 15L x 5.5W x 21.75H in.. Property owners, mechanics, warehouse operators, and anyone else in charge of a great big pile of keys will appreciate the functionality and security of the Barska 240 Key Lock Box with White Tag. This sturdy steel cabinet in gray finish contains 240 numbered and hooked key tags with slots that make organization simple. A double-sided indexing chart for documenting each position and a drop-in sleeve with tether are also included, as is all necessary mounting hardware.