The Kensington ClickSafe Keyed Laptop Lock -On Demand is a stocked master access solution designed for effortless protection of computers and your business"s most important data. Locks attach to hardware in a single step. Just one click and it is secure. There is no need for employees to insert a key or follow multiple steps. ClickSafe combines a cable made from superior materials with a tamper-proof disc-style lock to deliver the strongest security available in a cable lock. This product does not ship with Master Keys. Kensington will directly provide Master Keys for the locks purchased on Amazon.com. After purchasing these locks, please register at kensington to receive your Master Keys at no additional charge.