Detailed Product Description Product name: 3d laser crystal key chain1)Material:superior k9 optical crystal2)Size: 25mm,as per your like.3)Packing:one pc/gift box with satin inside.4)Your logo or text can be engraved on the crystal by sandblasting or printing.5)lead time: 20days,depending on your order quantity.6) port:Shanghai/Ningbo China 7) color of the light: blue,red,green, or multi-colors