... Feature-Light,strong,non-toxic,Water Proof Our pp hollow board is good in quality and reasonable ... in price:DescriptionPP Hollow Board / PP Corrugated SheetMaterialPP (polypropylene)Width & length (mm)<1800, ... limitsLimitless (according to your demand)Thickness (mm)23456Weigth(g/sqm)3505007009001100ApplicationPacking:transfer box, mailbox, display rack, partition, ...