F-4 SpinnerChildren will love seeing just how fast they can spin on the F 4 Spinner. A center pole holds up the top framework that supports the four spinners. Each spinner is designed for one child at a time. They tilt inwards slightly to help children get started spinning. Children can play alone or together, encouraging socialization. As kids shift their body weight to control their speed, they will develop their sense of equilibrium limits. The movement