RESEALABLE SEALING STRIP - The mylar bags feature a sealing strip to keep water and moisture dust or any odors out when sealed, and the sealing strip is very tight, and clear window design allowing for a quick glance at contents inside. LONG TIME FOOD STORAGE - The smell proof bag is pure aluminum foil mylar material, means your food stay fresher for longer than a regular mylar bag. In case you need to ensure that no smell leaks, this will also ensure that the foil bags have not been previously opened. PRACTICAL - This mylar bags for food storage can store coffee, beans, candy, sugar, rice, baking, cookies, tea, nuts, dried fruit, dried flowers, powder, snack, spices, and much more food, lip gloss or decorations. HEAT-SEALABLE - The resealable mylar bags can heat sealable, silver heat seal bags. The mylar bags can work with various food sealer machines for extra protection. SIZE: Outer size is 7 x 10 cm, you will get 100 pcs resealable mylar bags, smell proof bag will protect your goodies against dry climates whether. and we provide you with several size selections, can meet different demands.