Clear Re-closable Seal Bag Plastic Poly Zip Lock Bags Jewelry Zipper Baggie 4Mil. Clear Reclosable Seal Bag Plastic Poly Zip Lock Bags Jewelry Zipper Baggie 2Mil. ECO FRIENDLY: Made of 100% new Low-density Plastic, the Zipper Bags are incredibly durable and strong. Non-toxic, Odorless, Acid free and Food Grade Safe providing a good protection and display for your goods.