The Delsey Meridian Plus hardside line is a lightweight polycarbonate composite case built on an aircraft aluminum frame. It is tough, light, and full of important features. This is a framed case with regular locks and hinges. The interior has 2 hangers for easier packing, a divider for organization, and a full padded lining for protection. Outside the pull up handle locks at several different heights for your size, has a TSA approved lock for security, and an attachable carry strap for an additional bag. These cases will store inside of each other and the larger two sizes have a 4 wheel system for easy traveling. 10 YEAR WARRANTY.