Material : Steel Outer Dimension: Width= 23 cm Depth= 17 cm Height= 17 cm Inner Dimension: Width= 22.6 cm Depth= 16.4 cm Height= 16.6 cm Weight : 2.7 kg Color : Black Body Thickness : 1.5 mm Door Thickness : 2 mm Hidden lock with two emergency key Opens with digital PIN or included override key Security code from 3-8 digits Mounting to a wall or floor No shelf