1) Safety for food packaging, 2)FDA certified, REACH, RoHS complied 3)ISO9001:2008, HACCP and Kosher certified 4) Water tight 1) Material: LDPE2) Bag safety certificates: RoHS, REACH,KOSHER, FDA COMPLIED.3) Transparent film, translucence film or opaque film are all ok! 4) Water proof 5) Suitable for various kinds of food, i.e. meat, seafood, snacks, fast food stuff, rice, beverages, condiments ...