ziplock bag 1.good puncture resistance 2.sealing strong 3.environmental friendly 4.no-toxic zip lock bag, zipper bagMaterial: PET/Brown ... paper/AL/PE(general packaging), PET/Kraft paper/CPP ... , VMPET, VMCPP, PAPER, AL, PA, ETCInner-layer:CPP, PE, White milk PE, VMPER, ETCUsage Food, tea, medical, seed, coffee... PrintingArtworks are ...