Description The GSK4 safe comes with the storage facility to hold 200 sets of keys on 4 easy pull out, double sided carry boards that hold 50 keys each, and sturdy 4mm heavy duty hooks, making this safe practical and user friendly. SECURITY KEY SAFES: Commercial UL digital lock and keypad Anti-tamper re-locking device on the lock Hardened anti-drill plate surrounding the lock 4mm Solid steel body construction 10mm Solid steel door GSK4 22mm Heavy duty solid steel bolt work Durable paint finish Rear and floor mounting points External hinges with a reinforced internal full length dead bar 200 key hooks Important: Allow 55mm projection for handle on depth measurement.