... zipper and valve ITEM 12oz black coffee bag/pouch/sachet with zipper and valve Material PET/AL /LLDPE, PET/Vmpet /LLDPE etnFunction dampproof,lightproof ... bread, tea, herbal, wheat,cereals, tobacco, washing powder, salt, flours, pet food, candy, rice, confectionaries Standard options for our pouches· Zip ... look forward to cooperate with you in early future 12oz black coffee bag with zipper and valve