We offer a large selection of Extra-Large Covers & Liners. You can search many types of Giant Black Opaque Poly Bag Covers and Liners with UVI, Giant Clear Poly Bag Covers and Liners, Giant Black Opaque Poly Bag Covers and Liners and Giant Metallocene Covers and Liners. Giant Bag Covers and Liners with UVI can conceal and protect contents during shipping, construction, or storage. Perforated on rolls for fast, easy dispensing. Giant Metallocene Covers and Liner is perforated and comes on a roll in clear (1.5 mil.) is thinner, stronger, and less expensive than comparable low density poly. This new generation polyethylene resin offers better strength and is tear resistant when compared to a thicker low density poly.