Smart Business Trip Carry on Trolley Luggage Case

1)size:20/24/28
2)material:100% pc
3)lining:210d polyester,with small pocket,nest pocket,document pocket
4)trolley:aluminum trolley ,it is light than iron trolley
5)with 4 metel corner,avoiding bruise during trip
6)wheels:4double silent wheels 
7)handle:soft handle,the side handle is same as the top handle
8)zipper:8#anti-thief zipper,it is stronger than common zipper
9)metel zipper puller
10)lock:insde tsa lock
12)packing:one pc/polybag,one set/ctn
14)color:5color/hq