Sketch Kit is our robot accessory that enables kids to visualize the results of their code on a large canvas. The harness attaches the dry-erase markers (included) to the robot so that when the robot moves around over a piece of paper or whiteboard, the markers draw a line demarcating those moves. Sketch Kit helps kids express their creativity and exercise critical thinking and spatial reasoning skills as they draw geometric shapes, patterns, words, and more. * Sketch Kit includes * 1 marker harness * 6 custom dry-erase markers (red, blue, green, orange, purple, black) * 6 project cards