Most of them have glitter or rainbow mizuhiki to add a touch of glamour. 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's woven. This set includes 10 red, 5 blue, and 5 green pieces, for a total of 20. The back is secured with white glue. They can be used in various ways, such as for wrapping, keychains, mask charms, small envelopes (pochibukuro), and small gifts. Please see my profile.