These are crystal clear, resealable cello bags for packaging. These have the self adhesive strip on the lip of the bag. Peel off the strip, and fold the top over to the body of the bag to seal the contents. Each bag measures 2x3 inches after sealing, and is 1.2 mil thick. They're perfect for beads, samples, or small jewelry - for storage, or for safe, clean packaging. Flat bags - please consider the thickness of your item when choosing the size of bag you need. Clear cello bags are the 'crispy' clear bags that people commonly use for packaging merchandise and samples.