Material:
Lock: zinic alloy lock (with precision casting way)
(Precision casting can increase the hardness of zinc alloy and not easy to be broken)
Cable: PVC coating cable
Dimensions:
Lock: 57 x 14 x 34 mm
Cable: 6mm x 180 cm
Advantage:
4-digits is stronger than 3-digits
Precision casting would increase hardness of lock and increase protected ability
Dual-mechanism: 4-digits combination and override key for emergency opening (e.g. eliminate the risk of forgotten combinations.)
Override key function:
If users forget their own combination, the lock will be unlocked without damaging notebook/laptop. Only use attached override key to unlock when users have forgotten their personal combination.