The Katana Samurai Sword Magnetic Bookends consists of two hidden metal plates that you place in the books at both ends of your bookshelf. Then you attach the Katana hilt and the sword end magnetically to both books creating the illusion of a Katana sword that has impaled a row of books. Of course you would need a good number of books or you will end up with a rather short and not so menacing looking Katana. Its Blade/handle is made by plastic.