The mylar bags feature a sealing strip with a zipper closure to keep out water, moisture, dust, and odors when sealed. The closure is secure and easy to use, ensuring you can confidently know when the bag is properly closed. Made from mylar and foil material, these smell-proof bags help keep food fresher for longer compared to standard zipper closure bags. These mylar bags are suitable for packing, storing, sampling, and sorting. These resealable bags are ideal for storing coffee, beans, sugar, rice, baking ingredients, cookies, tea, nuts, dried fruit, dried flowers, medicine, herbs, spices, and many other food items or dry goods. The mylar bags are heat sealable and feature a double-sided black heat seal layer. They are compatible with heat sealer machines for added protection.Size: 7 x 10 cm Material: Aluminum foil Color: Black Package Contents: 100 flat food bags Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by up to +/- 1-3 cm.