NICE PERFORMANCE: The Resealable sealing zipper ensures that our mylar bags can be resistant to smell or dust, keep the items inside fresh and clean. You can either manual seal zipper part or you can heat seal the open top section above the zipper, so that achieve storage effect, and these food storage bags can be applied many times. CONVENIENT TO USE: You just need to open and seal food inside, which is easy to use for packing and storing. Smell Proof Bags clear window design provides you with quick glance at contents inside. Please make sure to close the zipper seal tight to prevent leakage and ensure freshness. MATERIAL AND SIZE: These resealable bags are made of quality, non-toxic and reliable material, you can put items in them safely. These resealable smell proof bags feature shining and beautiful outlook, you can refer to pictures for checking the detailed style information. WIDE APPLICATION: Our holographic pouch bags are suitable for packing coffee beans, bath salt, candy,