"glass 'hologram sticker: 1) Material1,Normal--PET,PVC,Paper or transparent. 2,Many colors for your choice. Such as red, green, gold, silver,pink... 3,One-off material,if someone try to tear off the sticker, it will be destroy. 4,VOID material, if someone try to tear off the sticker, you can see "VOID". 5,Permanent material, it..