Smell proof & Resealable zipper: the reliable sealing zipper ensures that our packaging bags can be waterproof, dustproof and odor-proof to keep items fresh and clean can also be used with sealer for extra protection . Easy to use: smell proof baggies just seal and open, easy to pack and store transparent window is convenient to make you more convenient to observe. Please make sure to seal the zipper tightly to prevent leakage and ensure freshness . Wide applications: holographic bags are perfect to packing coffee beans, bath salts, candy, pills, rice, cookies, tea, nuts, snacks or other food products you want to store, you can also use it to store cosmetics, electronics and crafts, etc . Packaging and Size: You will get 100 pieces packaging pouch, enough for your daily use and replacement. The outer size of the aluminum foil bag is 10 x 15 cm/ 4 x 6 inches and the inner size is about 9 x 12 cm/3.5 x 4.7 inches .