... 2-32. hard shell luggage, ABS/PC suitcase3. SIZE:20''+24''+28'' Size 20'' can be used as the pilot trolley, cabin luggage.4. color ... : black, can be customized with fashion colors5. 4 *360 spinning PP wheels, easy for travel6. material: PC ... ODM service, welcome to visit our factory in SUZHOU, thanks. hard travel trolley/ABS/PC trolley luggage set/ trolley case set