Type: Storage Bags Pattern: Three-dimensional Type Classification: Set Use: Food Applicable Space: Kitchen Feature: Stocked,Eco-Friendly,Folding Shape: Square Product: Stand-up Aluminum Foil Coffee Valve Zipper Closure bag Thickness: 28 wire Features: Oxygen Resistance, Grease Proof, Moisture Proof, High Barrier Open and Close Way: Zipper Closure Style Thickness: 260 microns (1 micron = 0.01 mm) Application: Widely used in Snacks, Cookies, Nuts, Fruits, freeze food, Tea, Coffee beans /powder, Gifts, etc With Re' sealable zip lock options, easy to open and close. Extraction is on dead angle, protect sealing sex is extremely strong, leak-proof quality. With Humanized design of tear notches on sides, which makes tearing of pouches very convenient with both two sides. Capacity:150x230mm (250g, 1/2 pound); colour:black Material: Aluminum Foil Package Contents: 50 * Zipper Closure bag Only the above package content, other products are not included. Note: Light shooting 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.