The material used for the decorative layer of the tiles is freshwater shell and mother of pearl. The mosaic made with these natural materials is backed by a mesh. As the shells are completely natural products, no two are exactly the same. Therefore the tiles and the mosaics also will always show a slight variation in colour. The shell chip sizes range from 10x10mm to 25x25mm, with several sizes in between; the seashells are between 10x10mm and 12.5x25mm. The tiles are suitable for outdoor uses, as well as various uses in interior spaces. The material is resistant to normal non abrasive bathroom creams, but no harsh chemicals should be used.