Product dimensions: clock: 40x40cm, edges 20x40 2 pieces Product material: 3mm black natural wood application on 3mm natural black MDF wood. It is sent as a set of 3 PIECES. It is produced by laser cutting. Mechanism information: Hour hand: Length is 10 cm, minute hand length is 13 cm, seconds length is 14 cm. The clock mechanism is quiet enough not to disturb the sound. It works with a single battery. (Battery is not sent.)