This kit was slightly disappointing. Out of three robots, only one works well. One needs assistance to wiggle due to poor design, and the third robot cannot be assembled because our kit contained the wrong motor. There should be two motors "B" and one "A," but our kit contained three type "B" motors. This wasn't a total loss because the information contained in the book was interesting, and the stylized illustrations caught my attention.

Some of the slots are not big enough to put together and some slots are too big when trying to get it to stay together. The wind up part that moves the arms won't stay in place.good idea but needs better design for stability of the robot.

All the robots motors do not work and the robots fall apart super easy. Do not recommend at all.