【3 Piece Hardshell Luggage Sets】: Made from durable lightweight PP material, these hard-shell shells have an incredibly impact-resistant, textured surface design that resists scratching. 3 piece sets includes: 20” carry on luggage/24” suitcase/28” checked luggage 【TSA Lock Suitcase Sets】: Equipped with TSA Approved lock and fully-lined interior divider. Combination key lock that allows Transportation Security Administration to inspect your bags without damaging the lock when traveling. Zippers are not easy to be pierced by sharp tools, better protect the safety of items in your luggage 【Suitcases with Double Spinner Wheels】: Luggage moves very silent and smoothly with 360°rotate double wheels. Four 360-degree multi-directional spinner wheels for effortless mobility, using new soft TPU and lubricating balls inside wheels 【Adjustable & Sturdy telescoping handle】: Sturdy ergonomic aluminum push-button telescoping handle with top and side carry handles, provides maximum portability and comfort. Allow you to maneuver in tight spaces and provide effortless movement 【Professional Service】: Every item in our sets undergoes meticulous quality testing to ensure optimum performance. Should you require assistance with your purchase, please don't hesitate to contact us via Amazon Dear customers, welcome to Tripcomp store. 3 piece luggage sets for you to choose. 20-inch carry-on luggage can be directly boarded.The 24inch and 28inch checked luggage. It is convenient to carry more items when you travel.This complete suitcase contains three different sized suitcases;small, medium and large. Each size is perfect for your needs or individually based on your travel time and how much you need to carry.