Digital PIN Code & Override Key-- You can open it by digital PIN or the override key, Security code from 3-8 digits using any number from 0-9, Time out period after 3 incorrect combination attempts More Secure --Constructed with 2mm thick Solid Steel and 4mm thick front door, Inside tamper-proof hinges for more security. Better Protection--Carpet padding on inside bottom to well protect your Jewelry, Watch, Card and Cash Money from any damaged. Easy Installation--Pre-drilled holes are on the rear of the safe box, with included 125px bolts for anchoring. You can mounting it into the floor, wall or cabinet. External Dimensions-310MMx200MMx200MM/12.20"x7.87"x7.87"--Internal Dimensions-300MMx190MMx160MM-11.81"x7.48"x6.29"--Weight-4.8KG/10.58Ibs-- Package Includes--1x Safe Box, 1x Velvet Mat, 1x Instruction Manual, 2× Keys.