These are crystal clear, resealable cello bags for packaging. These have the self adhesive strip on the lip. Peel off the strip, and fold the top over to the body of the bag to seal the contents. Flat bags (no gusset) - please consider the thickness of your item when choosing the size of bag you need. Impress your customers with a unique crystal clear solution, provide 'Retail Pack' appearance and beautiful finished look for your product. Cello bag is non-porous, super-clear, non-stretching and generally stronger and more rigid than Poly bags. It is commonly used for packaging foods and displaying merchandise at retail. This bag feels slick and "crinkly" not "soft" like a sandwich bag.