... environmental ,no radiation, no pollution ,no harm to body5) low water absorption, high waterproof6) Backing: Mesh, Ceramic, Porcelain, Marble, PVC ... postercloth etc.7) Material: can be made by kinds of natural shells, such as mop shell, ablone shell, Chinese ... package: protect film, foam and pallet Outer package: carton Freshe water shell mosaic, natural white and dyed brown mixed checker pattern