... proof,Hi-transparent 3)Thinkness:40-150mic 4)Color:Customized Zipper Bag1) Material:LDPE.2) Certification: FDA, SGS, ... low density of materials,all the zipper bags are watertight.5) Easy to open and easy to close6) Size ... 150micColorUp to 10 Colors Roto PrintingSizeCustomizedBag StyleDouble Zipper,Single Zipper Bag, Wicket Zipper Bag, & Slider Zipper BagUsagePacking Food, Liquid, Chemicals, Electronics, ...