Thick Aluminum Blue Zip Lock Gusset Pouch Bag 14x20cm (5.5x7.8") (100/Pack) Colors (Front/Inside/Back): Blue/Silver/Blue Outer Size: 14x20cm (5.5x7.8"), Inner Size: 12.5x16cm (4.9x6.2") *Size may vary 2-3mm. Material: Aluminum Mylar, Thickness: 4.125 MIL (11C) Can store up to 320g of powdered products