... styles sand shapes like square, hexagonal, octagonal, decagonal, dodecagonal, and double decker. All clear span big ten structures are available with a ... weight,not easy to rust and distort.Cover Material:1)Double PVC-coated polyester textile.Any color is available.2) ... Accessories:1) Transparent cover,PVC-lear windows,glass door,slide door,folding door,tent,floor system,weight plate,lining and ...