Polyethylene Zip Bags are an affordable alternative to Crystal Clear Zip Bags. These 6" x 6" LDPE zip bags may lack the clarity of Crystal Clear Bags®, but they provide an affordable alternative when clarity is as not critical. Acid-free/Archival safe, available in 2 and 4 Mil. 1/16 sizing. Sold in packs of 100. Bag sizes indicate the opening side as the first dimension.