most usual combination of trolley case:1. high quality waterproof nylon2. 150d thick fabric lining with complicate inside structure3. alluminium rod with lazour print trolley4. varous side wheel or 4 moving wheel5. tsa lock or other high quality lock6. size available is 16”/20”/24”28”/32”, and 18”/22”/26”/30”.chooseable:1. you can send us your own design or style photo for us to open mould and produce or choose from our current hundreds of available designs of trolley case.2. we have about 200 different patterns of china nylon with highest quality / density.3. 150d thick fabric lining or 5 meter satin lining or others chooseable.4. more than hundreds of different trolleys and wheels chooseable or send us your ones then we will search and able to use the smilar design ones.5. hundreds of available designs of trolley case.