Ultra Tough Hardshell Luggage Sets: High resilience and sturdiness are the outstanding features of this suitcase, originating from 100% Polycarbonate (PC) raw material imported from Germany makes the sturdiness and durability of the suitcase rise to an unparalleled height. Trust SHOWKOO's professionalism, we have tested all your worries about the suitcase. Suitcase with Double Spinner Wheels: The adjustable and sturdy aluminium 3-step telescopic handle is suitable for people of different heights, and with 360° double spinner wheels, it allows you to move quietly and smoothly on the journey. Secure Tsa Lock: The Side mounted TSA lock only allows customs to inspect your luggage case for customs clearance, and you can set any 3-digit password to ensure the safety of your luggage. Expandable Suitcase sets: Open the smooth and durable expandable zipper, can expand the capacity of the suitcase by 20% (Only 24in & 28in). Soft handles on the top and sides of the luggage help you lift the suitcase easily without hurting your fingers. Scientific Design: The interior of the hardshell luggage is equipped with mesh pockets. The cross strap protects the baggage in the luggage to prevent movement that may cause damage, and also helps to keep luggage organized. About SHOWKOO: SHOWKOO not only provide you with high quality luggage, but also advocate to bring customers an easy, convenient and happy travel life. Smooth handle, quiet moving wheels, secure combination lock, large capacity packaging design to make your trip easier and carefree.Material: The hardside luggage set is made of PC material, durable and waterproof.Size: 20in(15.0*8.7*21.7in) 24in(17.5*11.0*25.6in) 28in(20.1*12.8*29.5in)Weight: 20in(6.33lbs) 24in(8.95lbs) 28in(10.95lbs)3-Step aluminum telescopic handle: Aluminum alloy smooth handle, adjustable in three sections to meet the needs of people of different heights.Suitcase with wheels: 360° double spinner wheels make luggage movement very quiet and smooth.Expandable luggage sets: Use the expandable zipper to expand the space of the suitcase by 20%Secure tsa lock suitcase sets: The suitcase is equipped with a tsa lock, and any three-digit password can be set to protect the safety of your luggage.PACKAGING: 3 piece luggage set includes 20" carry-on, 24" checked, 28" trunk. 20-inch, 24-inch, 28-inch suitcases can be nested within each other. One set will be packed in one box, please open the 28in luggage to check when receive the package.