2-Year-Limited-Warranty: Keytang luggage Sets, including suitcases with wheels and carry-on are rigorously tested to surpass the highest quality standards. Upgraded luggage sets with spinner wheels include 20" carry-on luggage, 24" checked Suitcase, 28" large luggage. Stylishly designed for effortless travel. Hardshell luggage set Expandable design for 20% more load capacity | Four 360° dual spinner wheels provide the suitcase with effortless mobility, and the 28 inch luggage with spinner wheels has been re-engineered to be lightweight. The best performence YKK brand zippers applied on the hardside luggage sets | TSA locks provide 100% protection and convenience for the luggage sets 3 piece and carry-on suitcase. Exceptional Value: The Keytang 3 piece travel luggage set stands out as the most valuable choice, rigorously tested to meet stringent standards, ensuring superior quality and durability.