Complete Set: Includes 20", 24", and 28" suitcases, catering to various traveling needs.Durable and Lightweight: Made of 100% ABS material with smooth 360° spinner wheels for easy maneuverability.Secure Travel: Features a 3-digit TSA combination lock for enhanced security and ease of access.Expandable Storage: 24" & 28" luggages offer 25% more packing space with expandable feature, plus fully lined interior and zippered compartments for organization.Space-Saving Shipping: Suitcases are shipped nested within each other for convenient storage.