Mylar Bags Resealable: Foil ziplock bags are two U-shaped tear ports on the top of baggies.it can be easily teared off,which are very convenient to use. Mylar bags 3.5g four corners are arc-shaped, which is not easy to scratch. Easy to Reseal: Mylar ziplock bags has a widened sealing strip, which fits tightly and can be reused repeatedly.Baggies 3.5g can isolate dust and effectively protect the contents inside.Heat seal bags mouth can be sealed by heat sealing machine.U notch on the bag’s top, easily torn after heat sealing. High Quality Material: Mylar bags is made of food-grade aluminum foil,PET and PE,non toxic, odorless.Resealable mylar bags perfect for packaging and sampling of products at store, shop, restaurants, home and kitchen. Multipurpose: Resealable bags are safe for food storage,waterproof. Wide use for candy bags,baggies,coffee bags,food bag,cookie bags,freshie bags,sample bags,snack bags,sealable bags etc. Value Pack: 100 pack foil bags, very cost-effective, can help you save money, you can share with your family or friends.Cali packs can hold various types of food and prevent the emission or evaporation of odors, vapors, or water.