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