Premium Material:Our resealable mylar bags are made of opp+pet+cpp, it has tear resistance and durability. Resealable Seal Bags: Clear bag with sealing strip. The black resealable pouches can be very good to keep the contents of the bag from contacting with air. Pane Display and Hanging Design: The small sealed bags help you organize and store your items better. The front window design of the odor-resistant bag makes it easy to clearly see what's inside. Easy To Use:Our smell proof bags are resealable that you can repeat open the zipper, the sealing strip is very tight and don't broken. Application:Our holographic bags is waterproof after seal, good to store coffee, candy, sugar, rice, baking, cookie, nuts, dried fruit and flowers, snack, party favor.