Our Simple Machine will peak children's curiosity with its visible mechanism and brightly colored balls. Children can observe the inner workings of the machines fundamental mechanism. Exploring and experimenting with this learning toy will strengthen children's deductive reasoning as they watch the balls roll and drop through the machine. Turning and twisting the knob will strengthen fine motor skills and increase coordination. Our Simple Machine will be a wonderful addition to your early STEAM learning tools. Comprised of stained hardwood and acrylic, this is a piece that is built to withstand years of learning though play.