3 Piece Set: Set contains a carry-on 20" airline approved luggage, a 24" checked suitcase, and a 28" large luggage. Specifically designed for 24 and 28 inch luggage, the extension layer adds more capacity to maximize your packaging capacity. ABS+PC Material: The utilization of ABS+PC makes the luggage relatively lightweight and portable, showcases excellent wear resistance, possesses a solid shell, can endure a certain amount of external impact, reduces the burden, and boosts travel efficiency. High Security: TSA combination lock are durable and tamper-resistant, and can effectively prevent luggage from being illegally opened during transportation. The use of YKK zippers ensures that the zipper is long-lasting and smooth. 360° Silent-Wheels: Equipped with spinner wheels, which are made of two layers: the inner axle is made of hard plastic and the outer body is made of rubber. This design ensures that the luggage can be pushed and pulled smoothly, smoothly and effortlessly moved in any road conditions. Aluminum Telescopic Rod: Combining strong, lightweight properties, corrosion resistance, and rust prevention, which makes them more comfortable to use for extended periods of time, all of which prolong the life of your luggage. WireHot 3-Piece Luggage Set with Spinner Wheels TSA Lock, 20+24+28 Hardside Travel Zipper Suitcase