Travel Light - Lightweight 100% ABS construction ensures long-lasting usage and durability.Lightweight 100% ABS material. smooth 360° spinner wheels and carrying top and side handles make your trips more easily.Upgraded with 3-digit combination TSA lock. so that only you or a TSA agent have easy access to your belongings when travelingMaximize 25% more space of your packing power with the Expandable feature. Large storage space and fully lined interior with zippered compartment to keep your items organized.The complete 3 piece suitcase set will be shipped with each suitcase inside one another to save space for your convenience.HOW DO I RESET THE COMBINATION LOCK1. The lock is set to 0-0-0 at the factory.2. Locate the reset button adjacent to the dials. push it and hold while you rotate the dials to your desired 3-digit code.3. Release the reset button and your code is now set.4. Scramble the dials and test your new code to be sure the correct one is set.