Halulu Storage Bags - Silver Aluminum Foil Mylar Bag Smell Proof Pouches 100pcs 6.4x8.8" DIMENSION - Pack of 100, 6.4 x 8.8 inch, Aluminum foil MATERIAL - Strong mylar foil, Opaque Security, Glossy Finish, Water-resistant & Heat-sealable The bags are coated with foil on one side and thick polyethylene on the other, making them durable, gas/moisture resistant HIGH QUALITY - No Odor, Sturdy, Strong Sealing, Durable, Great ideal for storage and protection. Great for storaging dehydrated foodgarden seedspowder and etc. Different size would meet your different needs.