PE hand-held zipper bags of all kinds are with superior quality. The bag itself is smooth without wrinkles. With these advantages of strong pulling force of seals, good tension of the zipper and the just elasticity outside of the bag, it is free for you to open and close repeatedly. The standard length and the surface of the bag has been through high frequency treatment which make the printing ink dateless. For bakery, it has great transparency and keeps breads fresh, which extends the deadline.