1) material:freshwater shell 2) specification:regular or irregular 3) color:natural and dyded color according to customers taste 4) usage: all shell tiles are widely used for decoration, furniture, room, floor and wall 5) we are an expert factory specializd in manufacturing shell crafts, shell tiles(shell mosaics) is one of our main products, other products like shell beads, shell inlaying pieces, shell jewerly is also in our lines. Please don't hesitate to contact us, if your needs coincide with our supply.