[Good Seal]The reliable sealing zipper ensures that our mylar bags can be to smell or dust, keep the items inside fresh and clean; you can either manual seal zipper part, or you can heat seal the open top section above the zipper. [Convenient to Use]Just need to open the food storage bag to seal food inside, which is easy to use for packing and storing; And the parent window design provides you with quick glance at contents inside;The stand up design make you store the items more orderly. [Material and Sizes]These resealable bags are made of polyethylene material, non- and reliable material, you can put items in them safely; We provide you with several size selections, can meet different demands,please check the size carefully before placing an order. [Wide Applications]The mylar bags are good use for home, school and office. It is very suitable for packing coffee beans, sugar, cookie, nuts, dried fruit, snacks, popcorn, ,etc. Also, suitable for cable, car charger, mobile . [Package Includes]You get 100 pieces resealable mylar bags in one package, large quantity for satisfying your usage and replacement, or you can share with others. Colour:black Material:Polyester film Size:10 x 15cm Package Contents: 100 * Smell Proof Mylar Bags Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.