10" x 12", made of 100% natural cotton, the stitches are fine and strong againt tearing. No matter the weight of the stored item, it will not tear or break easily. It's also extremely light at just 0.07 pounds, making it very portable. It can be used as a storage bag for grains, spices, tea, nuts, cosmetics, snacks, etc. It can also be used as filter bags for herbs, yogurt, juices, etc.