A Charming Aesthetic & Top-Value Pack: Nice Black color printing bags come with attractive, retail-friendly flat bottm & stand up design that is perfect for packing handmade coffee and tea to gift or sell. Our high-quality packaging bags will be the first impression of your products. Food Safety Material: Matt BOPP/PET/Aluminum Foil/Food-Grade PE, Four-tier design make it stronger, block light, keeps coffee from odor or moisture, ensure the taste of coffee or powder in the bag, and can also be transported over long distances and fit for long-time food preservation. Household & Commercial: Not only to ensure that the coffee is fresh home, also store other nut snacks and so on; Commercia use: You can attach your own brand label on the surface as a retail or sample display package. 3 sizes available for different needs. Keep Fresh By Degassing Valve: One-way degassing valves release the pressure of trapped air and gas such as the carbon dioxide emitted by coffee beans, while preventing outside air from entering the bags. Easy Use Bags: Pull tape to open the bags and comes with resealble side zipper. Its sealed sides and flat bottom provide maximum strength, allowing the bag to perform as a true stand-up pouch. KINDLY NOTE: This type of bags must be sealed by heat sealer(not included) after packing. 50 Count ¾ LB Black Color Foil Coffee Bags - High Barrier Aluminum Foil - Flat Bottom Coffee Pouches with Degassing Valve, Food Storage Bags with Rsealable Zipper & Easy Open Tape (Pack of 50, 12oz/0.75lb Size)