<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.