You've probably read that laptop computer theft is on the rise. Protect your equipment, and even more importantly, your data. Lock it and leave it safe. Protect your notebook and personal information from theft. Lock it with this easy-to-use, keyless, 4 wheel combination lock from Kensington, the leader in notebook security. And, best of all, Kensington provides for online registration that makes it easy for you to retrieve a lost combination. Fits into the Kensington security slot found in 99% of notebook computers. Kensington Lifetime Warranty.