The locking cable is suitable for connecting to laptops, desktops, PC computers, TVs, monitors, hard drives, projectors, or most devices that have a built-in standard security lock slot to keep them secure.Specification:Color: Silver ToneMaterial: Steel, Zinc AlloySteel Cable Size: 1.5m x 4mm/ 5 feet x 0.16 inch (L*Dia.)Lock Body Length: 21mm/ 0.8 inchKeyhole Size: 12 x 8.7mm (L*W)Packing List: 1 x Laptop Locking Cable with 2 KeysAdvantage:The laptop security cable is made of thickened steel wire with PVC coating on the surface, which is smooth to touch and will not scratch the surface during use, strong and durable. The lock is made of zinc alloy which can be rotated 360 degrees, waterproof and rust-proof, with high security and strong anti-theft performance.Instruction:for laptops, monitors, projectors and other electronic devices equipped with 3*7MM security lock holes on the market, just simply insert the lock head into the slot, and loop the cable around a fixed object. otherwise it needs to be used with an adhesive plate(not included).