Sienoc Notebook / Laptop Universal Security Cable Chain Lock w/ Two Keys, 3 FT / 1 M Silver notebooks desktops docking stations Note: Make sure the notebook supports security chain lock Secures your laptop / Notebook onto any stationary object prevent it from theft The T-bar mechanism bar allows popular utilization of this lock Simply loop your laptop around a stationary object with the cut-resistant galvanized steel chain 2lock keys as an alternative spare Cable Length: 1M Color: Silver Material: Cut Resistant galvanized steel cable with clear vinyl coating Works with all notebooks, desktops, docking stations with built in standard security locking slot hole 1. In theory, our Chain Lock Works with all notebooks, desktops, docking stations with built in standard security keyhole , and if the customer&#039;s computer keyhole is not a standard keyhole, it may not be compatible. If the key is jammed or the rotation is not flexible, you can add a lubricant to the keyhole. When you use this chain lock, you need to accurately put the key at the keyhole, then press to turn your keys.