The TK Mini B is an undersized yo-yo produced by Tom Kuhn, based on the design of the RD series. It was released in the early 2000s, specifically to corner the miniature yo-yo market. Like the RD series, the TK Mini B is made of wood, and features Turbo Disc response and a ball bearing axle for long spins, along with the removable metal weight ring system. Though an undersized yo-yo, the TK Mini B isn't even as small as the Pocket Rocket.