Plastic Gripper Bags – Large. Our 2 mil. thick clear line single zip lock type bags offer a unique zipper that opens easily from the outside while contents are locked in. Off-set lip allows for easy separation. Ridges on inside of lip make gripping easier. Clear poly is ideal for showcasing your product. The bags are made from virgin resin and meet FDA requirements for food applications. Did you know that 2 Mil is the standard thickness for reclosable bags? They are the most popular thickness for zip lock bags and are used in every conceivable industry imaginable! Some common industries that use these economical bags for packaging are jewelry, food, pharmaceuticals, office supplies and fulfillment centers, as well as medical and dental supply companies.