【Kraft Paper Bags】Our paper bag set includes 50 pieces kraft paper bags with windows, we offer different sizes to meet your different needs.【Heat Sealable】Our kraft paper bags have self-sealing strips. expanded and reusable sealants, easy to use. Plus, you can heat the pouches to extend shelf life or send cookies to friends after filling. If it is not heat sealed, tear the groove and use it as a normal zipper bag. samples. You can use the bag to hold a variety of foods such as coffee, beans, rice, nuts, cereals, baked goods, dry pet food, herbs, spices, tea , etc.【Food-grade kraft paper】Our packaging bags are made of food-grade kraft paper, 3-layer composite material, the surface is more delicate, moisture-proof, oil-proof, wax-free and more healthy.