Description:4 digit password protectionWorks with all notebooks, desktops, docking stations with built in standard security locking slot holeSecures your laptop / notebook onto any stationary object [ex. Desk, poles, etc.] and prevent it from theftThe T-bar mechanism bar allows popular utilization of this lockSimply loop your laptop around a stationary object with the cut-resistant galvanized steel chainProtect your notebook computer and its valuable data with this affordable computer lockEasy installationCable Length: 3.3 FT / 1.1MColor: Silver Instructions For Use?Push the number-adjusting rod of lock inward (the original number is 0-0-0-0 )Set your secret combination by turning the dialsDecontrol number-adjusting rod and let it to return to the original positionOpen the lock again now you new personal code setMake sure you note your code carefully and check that the lock functions correctlyIf you want to change to a new combination ,repeat the above stepsAlso suit to a travel bag