[PREMIUM MATERIAL] - Our resealable mylar bags are made of polyethylene, aluminum foil, and mylar, offering tear resistance and durability. [HOLOGRAPHIC RAINBOW COLOR] - Our foil zipper closure bags feature a holographic rainbow color on the back and a transparent front to clearly display the product. When displayed indoors, the beautiful rainbow effect is visible without requiring excessive lighting. [EASY TO USE] - These smell proof bags are resealable, allowing you to open and close the zipper repeatedly. The sealing strip is secure and durable. Usage recommendation: Pinch both sides of the bag opening with your thumb and index finger, and open the bag with both hands. Keep thumbs close to the zipper while applying force to open. [WIDE USES] - Our holographic bags are waterproof after sealing, making them ideal for storing coffee, candy, 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, key chains, cosmetics, soap, electronic accessories, or other small items. [SIZE & QUANTITY] - Measuring 3 inches by 4.7 inches, each package includes 100 resealable holographic bags, sufficient for daily use. Please note that colors may appear slightly different under various lighting conditions, angles, or on different screens. Color: Blue Material: Aluminum foil + polyester film Package Contents: 100 x Smell Proof Mylar Bags Only the above package content is included; other products are not. Note: Light and different displays may cause slight color differences between the image and the actual item. There may be a measurement error of +/- 1-3cm.