For most of them, we've added glitter or rainbow mizuhiki to give them a glamorous look. The three-strand ones are about 2cm in size, but the size may vary slightly depending on the thickness of the mizuhiki and the way it's woven. The back is secured with white glue. We've included 10 each of the red and blue colors. These can be used in various ways, such as for wrapping, keychains, mask charms, small envelopes, and small gifts. Please see my profile.