This Judy Clock Classpack brings the complexity of geared movement down to a hand-held size. The 5" x 5" clocks are made of bright yellow plastic with knobbed hands to help make practicing time skills easy for little fingers. The hour and minute hands move independently and a clear, plastic window reveals working bright red and green gears! Great for teaching math skills recommended by the NCTM such as mathematics as communication, number sense and numeration, fractions, and measurement. This set contains 6 Judy clocks.