The Sportube(R) Combination Cable TSA Lock allows you to safely lock up your luggage using a unique 3-digit combination that you choose. It's been Travel Sentry(R) approved so you can rest assured that the lock can be unlocked and inspected safely by the TSA. The Sportube(R) lock uses a 25% thicker cable than comparable locks for ultimate protection. DESIGN: Click here for additional information relating to the Manufacturer's Warranty. 25% thicker cable than comparable locks Can be unlocked by TSA with their unique key 3-digit combination lock allows you to set your own number Travel Sentry(R) approved: Allows your luggage to be unlocked and inspected safely Sportube