The most popular classroom clock ever to help children learn to tell time. The Judy Clock has movable hands and large, clear hour numbers on the face. Grasp the knob on the minute hand to turn it and watch the visible, working gears simultaneously move the hour hand. Children clearly see that turning the minute hand one complete revolution causes the hour hand to move forward one hour. Pressed wood with plastic gears. Removable metal stand and teaching guide included. 12¾" x 13½". Ages 4 and up.