About This SMELL PROOF BAGS: the material of the bags is aluminum foil and plastic, it can block the water, moisture, odor, and dust from the outside; keep your food fresher for a longer time RESEALABLE BAGS: the zipper design is easy to open and seal, you can reseal it multiple times HEAT SEALABLE BAGS: heat sealing strip is on the top of the bag, and the opening notches on the sides, you can heat-seal it to extend the storage time MULTIPURPOSE: suitable for storing dried food, tea leaves, coffee beans, cookies, nuts, candy, sugar, salt, rice, spices, jewelry, cosmetics, electronic accessory, and so on Quantity: 50 pcs / Outer size dimension: 7x10 inches (18x25.5 cm), and the bottom gusset is 3.2 inches (8.2 cm) / Color: Both sides matte black / Thickness: 5.11 mils (one side) This product is not microwavable. Overview Brand : Chamigon Material : Aluminum, Plastic Capacity : 5 Mils Product Dimensions : 7"W x 10"H Closure Type : Zipper Number of Items : 50 Special Feature : Resealable, Stand Up Shape : Rectangular Color : (50 pcs) Matte Black Item Weight : 200 Grams