... or others 3) Finished product thickess:5~20mm or others Shell Thickess:1.5~2mm4) environmental ,no radiation, no pollution ,no ... of natural shells, such as mop shell, ablone shell, Chinese river shell, black MOP , yellow MOP , pink Shell, pen Shell etc.8) Processing technic: close ... :Inner package: protect film, foam and palletOuter package: carton River shell frame shell photo frame