... Size: 300mmx300mm3) Shell thickess:1.5-2mm4) Material: kinds of natural shell, such as mop shell, ablone shell, Chinese ... etc.5) Backing Material:Mesh, Ceramic, Porcelain, PVC, Plywood.6) Kinds of processing technic: close, net sieve, microcrack, seamless, filling ... etc7) In a variety of designs8) Can be made according to customers' requirements or samples ...