Keyakizaka46 Rika Watanabe Rubber Keychain This is a rare and valuable item, as it is not widely available. There is a signature on the back. (Not handwritten) This is an old item, so although it is new, there may be some dirt on the bag. Please check the photos. I also have other goods from Nogizaka46, Keyakizaka46, Sakurazaka46, and Hinatazaka46 for sale.