1.efficient and durable 2.high quality 3.ingenious and practical 4.economical and practical Zip lock bags1)Material:pure imported LDPE material2)We own advanced international blowing machines ,gravure printing machines, bag cutting machines.3)Features:transparency is good,waterproof, airproof, moisture proof, keep freshness . 4)Used widly,such as :FOOD,electric components,medicine,jewelry, ...