100 pk resealable mylar bags 4 mil 5”x 8”x 2.5” stand up smell proof leak proof foil pouch. travel, storage & display. food grade roypack roypack <b>roypack durable mylar barrier bags <br><br> over 4 mil thick, 7 millimeter side seams throughout <br> thick walls to maintain odors and oils in, while keeping the elements out. <br>note: window will have a matte or frosted appearance <br> allow our superior stand up pouches to showcase your quality products! <br> bags are sold empty. photo of contents for suggestion purposes only.