... Product Description * Waterproof, tide proof, air proof and non-poisonous printing zip lock bag ;* Easy to open and easy to close ... (width)×6(length)cm to 40(width)×50(length)cm;* Printing up to 4 colors ( non-printed is also ok);* Used ... ISO9001 certified. We are proud of our quality and multicolor printing. The products has enjoyed great popularity in Australia, Canada, Japan ...