... raw material.2) description: this kind bag is bags with ziplock, safely used for food packing .3) characteristic: easy to close ... and open, durable.4) usage: safely used for packing food, stationnerirs, electronic, applicance, cosmentic, jewelry gift, handicraft ... bags,our quality is very good and the price is competitive.Sincerely welcom you to contact us. Safely used for food storage ...