【Premium Quality】These smell proof Mylar bags are made of polyethylene, aluminum foil and mylar, composed of three layers of materials, reliable and quality, heavy-duty and not easy to break, serviceable and strong, you can use them to store food, herbs, coffee and tea ,etc.small business packaging bags 【Airtight Leak proof Seal】Airtight Leak proof Seal - A top fastening seal allows for airtight sealing by hand or vacuum. Leak proof, waterproof, and smell-proof. Non-permeable mylar material prevents exposure to air, light and moisture. Store food, stockpile dried goods, and keep packaged products sealed & isolated from air, moisture, and environmental factors.packing bags for small business 【Self-Stand】An expandable gusset bottom opens the mylar food storage bags to allow additional storage space. The foil bags can stand on their own, which saves space and keeps your kitchen organized 【Multi-purpose】These resealable mylar bags are suitable for food, coffee, tea, dried food, dried fruit, popcorn, and they also can store necklaces, earrings, lipsticks, electronic accessory. 【100% Satisfaction】In case of any dissatisfaction or inconvenience with our product. Please feel free to contact us so we can provide a better service 200 Pieces Pack - With a great cost-effective packing, each pack have 200 pieces includedPremium Quality - Leak proof, waterproof, and smell-proof. Store food, stockpile dried goods, and keep packaged products sealed & isolated from air, moisture, and environmental factorsMulti-Uses - Suitable for food, coffee, tea, dried food, dried fruit, popcorn, and they also can store necklaces, earrings, lipsticks, electronic accessorySelf Stand Feature - The foil bags can stand on their own, which can storage more, and also keeps your kitchen organized