The Robo-Board trains weight transfer, dynamic balance and provides proprioceptive stimulation for children from 4 years. The Robo-Board moves easily by means of the child's weight transfer from side to side. When the child's weight is shifted to one side using muscular force and rotation around the spinal column, the child can rotate in a circular movement of up to 360 degrees. Measures 19.69" x 6.69" x 3.94". Weight Capacity: 165.38lb.