Costco Original! This is a large-capacity pack containing 168 sheets. These zipper bags have an easy-open design with small, uneven tabs. Two types of zippers provide both easy, smooth opening and closing, as well as high sealing performance. They can be used for everything from freezing to thawing in the microwave. There is space to write the date and contents. Heat resistance is 100°C (212°F), and cold resistance is -70°C (-94°F). Thank you for viewing.