Press the lever to make each ball pop up and onto the track. Turn the knob to the right to capture a ball, then to the left to send it rolling back again. Auditory and visual responses teach cause and effect while the actions develop fine motor, planning, and problem solving skills that can include counting, addition and subtraction. Sustainably harvested rubber wood and safe, nontoxic finishes make Counting Ball Track a child and eco-friendly choice. Measures 12″L x 3″W x 6 1/4″H.