Durable ABS Material: Made of ABS material with texture finish, durable and light hard shell designed to prevent scratches, with upper beveled edge for added toughness. TSA Lock System: Equipped with TSA lock for hassle-free security checks, along with a side hook for hanging handheld items. Interior features include a fully lined lace-up design and a large mesh zip pocket for organized packing. 360 Rotator Double Wheels: Features four silent rotating wheels that allow for smooth movement in any direction, making it ideal for various types of travel. Wheels ensure the trunk remains upright while being maneuvered. Three-Piece Set: Includes 28-inch large luggage, 24-inch medium luggage, and 20-inch carry-on luggage to cater to different travel needs. Space-Saving Design: The three suitcases can be nested within each other for compact storage, saving space and reducing costs.