Most of them have glitter or rainbow mizuhiki to give them a glamorous look. The three-strand ones are about 2cm in size, but there may be slight variations depending on the thickness of the mizuhiki and the way it is woven. The back is secured with white glue. I made two of each, so I think you can use them for earrings, ear cuffs, etc. They are red, blue, and brown. I think you can use them for various purposes such as wrapping, keychains, mask charms, small envelopes, small gifts, earrings, etc. Please see my profile.