High security toughened steel. Colour may vary. Double locking steel bolts and concealed hinges. Pre-drilled anchor points for floor or wall mounting via 4 expanding steel bolts. Easy to programme 3-8 digit electronic security code. 2 back-up keys for manual over-ride. Requires 4 x AA batteries (included). Weight 9.5kg. External size (H)25, (W)35, (D)25cm.