Geared 12-hour clocks are designed to provide powerful models for Learning to tell time. Clocks are constructed with gears that replicate an analog clock's movements, making the clocks realistic and engaging to Watch. The easy-to-read clock face and minute markings help students see the relationship of the hour hand and the minute hand as they move around the clock. Contents include set of 6 measuring 4.33 inch diameter each., Geared clock is designed with easy-to-read clock face and minute markings to help students see the relationship of the hour hand and the minute hand as they revolve together around the clock, Hidden gears maintain correct hour and minute relationships as instructors demonstrate time activities, Made of durable molded plastic with color-coded, geared hour and minute hands.