The B.I.S.T. Bistone yo-yo is a high quality hand made anodized Italian Yo-Yo. B.I.S.T. stands for Best Italian Spinning Tools and these things are definitely the Ferrari of yo-yos. As soon as you see their yo-yos, you can tell that they have been made with great skill, love and care. Each one is beautifully made with fantastic machining - each is a work of art. The Bistone is a bit of an oddity in the yo-yo world. It is a one piece design meaning it doesn't come apart, nor does it use a bearing or transaxle. The design of this yo-yo is very innovative, being a one-piece yo-yo made from a single piece of aluminum. The maker calls it a pocket yo-yo, but this is not small. It does not include string. We only have one of these so good luck to whoever gets it first!