Not sure whether you want to use a combination or key for your luggage lock? With this cable lock, you won't have to choose! Locking Your Luggage Did you know you can lock your luggage while you’re traveling through the airport? Using a Travel Sentry Approved lock allows your luggage to be unlocked and inspected by special authorities without damage, and also prevents thieves from easily getting into your luggage. Protect your belongings today.