Kensington Portable Notebook Laptop Combination Lock Features: Keyless combination lock 3 digits, 4 ft. steel cable, Push button easy retraction, The unique T-bar lock for most secure grip to the slot, Self-contained lock and cable. Lock your laptop down when in hotel motels! Easy-to-use combination lock provides superior data security without a key. Cable is fully retractable, and stores easily inside case. The unique T-bar lock provides most secure locking. Fits into the security slot found in about 99% of notebook computers. We used this lock to secure our laptop to the table or cabinet so we could step away for a short while. Used it when traveling, or working at the library. All seemed to work ok. It gave a little extra security that someone can't easily just walk away with laptop. Pickup in Woonsocket, RI.