[PREMIUM MATERIAL] - Our resealable mylar bags are made of polyethylene, aluminum foil, and mylar, providing tear resistance and durability. [HOLOGRAPHIC RAINBOW COLOR] - Our foil zipper closure bags feature a holographic rainbow finish on the back and a transparent front to clearly display the contents. The rainbow effect is visible indoors without requiring excessive lighting. [EASY TO USE] - These resealable bags feature a secure zipper closure that can be opened and reclosed multiple times. The sealing strip is strong and reliable. For best results, pinch both sides of the bag opening with your thumb and index finger, then use both hands to open, keeping thumbs close to the zipper and applying firm pressure. [WIDE USE] - These bags are waterproof when sealed and ideal for storing coffee, sugar, rice, baking ingredients, cookies, nuts, dried fruit, flowers, snacks, and party favors. They are also suitable for small businesses packaging jewelry, eyelashes, lip gloss, keychains, cosmetics, soap, electronic accessories, or other small items. [SIZE & QUANTITY] - Each bag measures 3 inches by 4.7 inches. Pack includes 100 resealable holographic mylar bags, sufficient for daily use. Note: Actual color may vary slightly depending on lighting, viewing angle, and screen settings. Color: Blue Material: Aluminum foil + polyester film Package Contents: 100 x Smell Proof Mylar Bags Package includes only the items listed above; other products are not included. Note: Lighting and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.