empty 3.5g package smell proof mylar bag packaging stand up pouches heat seal resealable bags with window small moq customization

resealable zipper: you can either manual seal zipper part, or heat seal the open section above the zipper, so that achieve storage effect, and these food storage bags can be applied many times convenient: just open and seal, easy to use for packing and storing, transparent bottom for a quick glance at contents inside, pls close the zipper seal tight to prevent leakage and ensure freshness material and size: made of polyethylene material, non-toxic and reliable material, you can put items in them safely.syi