Our bestselling, classroom favorite Robot Mouse is now rechargeable! Keep the fun coding going without the waste and inconvenience of frequent battery changes. Recharge the mouse with a simple USB cord (included) for hours of play. The race is on to build hands-on coding skills! Build your maze, and then use the coding cards to create a step-by-step path for Colby, the Programmable Robot Mouse. Program the sequence of steps, and then watch Colby race to find the cheese! This 84-piece set includes Robot Mouse, USB-C Cord, 16 Maze Grids, 22 Maze Walls, 3 Tunnels, Cheese Wedge, 30 Double-Sided Coding Cards, 10 Double-Sided Activity Cards, Activity Guide. Ages 4+ | Ages PreK+