1. freshwater shell 2. size: Customized 3. eco-friendly,no radiation,waterproof 4. natural shell color or dyeing color 1. Material: river MOP(mother of pearl) ,freshwater shell,chinese shell. 2. Color: super white,or blown,as the color of natural MOP ,very beautiful. 3. Shape: Square and Any size can be customized 4. Thickness: 2mm,6mm,8mm or customized 5. Size: chip size : 10*10 mm ,20*20 mm,25* ...