This is a book clip in the style of a radical (U-kanmuri) clip. It functions and is sized the same as the real thing. It's unused, but please note that it has some scratches from when it arrived. Available for immediate purchase. ※This is not a Sunstar U-kanmuri clip. (Search terms) U-kanmuri clip, book, textbook, reference book, clip, stationery, music score, page opener