Hard-shell luggage - 6-piece set, including two travel bags, a carry-on with a combination lock, and dual spinner wheels. Available sizes: 16-inch/20-inch/24-inch/28-inch. This fully-featured 6-piece luggage set includes four precisely sized suitcases (16-inch, 20-inch, 24-inch, and 28-inch), a spacious travel bag, and a convenient toiletries bag. Each hard-shell suitcase is made of high-strength ABS material for effective shock absorption. It features a 360-degree swivel dual-wheel system. A side combination lock prioritizes security. A reliable digital combination lock mechanism ensures quick opening and secure operation. A durable zipper construction effectively prevents lock picking. A comfortable silicone handle makes it easy to go up and down stairs or switch between different modes of transportation. The three-section telescopic handle is adjustable in length to accommodate different heights.