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Set of 24 geared student clocks, each clock measures 10cm x 10cm. and 1 teacher's clock , measuring ..

Hidden gears maintain correct hour and minute relationships as you demonstrate time-telling concepts..

Set of 10 geared clocks, each clock measures 10cm x 10cm. Clocks are geared, meaning that the hour h..

Set of 10 geared clocks, each clock measures 10cm x 10cm. Clocks are geared, meaning that the hour h..