style no. AST906, size:18/22/26/30 inchs (nested packing) corlor: optional. carton size: 57*35*78.5CM. NW:20KGS GW:22KGS MOQ: 20GP(40HQ can load about 430 sets) High-grade PC film + ABS material with expandable zipper sewn, fashion design with curve trolley and two strong semi-transparent wheels. PC(polycarbonate) is a new material with his advantage of light weight and more tough than ABS. it is very popular in Eroupe and USA now.