This three-piece hard-shell rolling suitcase set features a TSA lock and comes in 20-inch, 24-inch, and 28-inch sizes. Each suitcase is made of premium lightweight ABS material, offering excellent impact resistance and durability while remaining lightweight and easy to carry. A 360-degree swivel wheel system ensures easy maneuverability even in tight spaces. Dual handles on the top and sides facilitate carrying up and down stairs or into a car trunk, enhancing portability during travel. The built-in TSA lock provides peace of mind. This rolling suitcase features a locking mechanism and an expandable design, increasing storage space by up to 25%. A zippered compartment is also included in the fully lined interior. The clever nested transport design allows the three suitcases to be compactly nested together, maximizing closet space when not in use and simplifying the unpacking experience upon arrival at your destination.