The original Terpz F1 Flower Packaging 3.5 Holographic Mylar Bag Items are Non-Refundable and Non-Exchangeable. The original Terpz F1 Flower Packaging 3.5 Holographic Mylar Bag In its basic form, Mylar® is a clear material made from polyester resin. The silver effect comes from a lamination to foil or a metalized ...