Product dimensions: clock: 47 x 47cm Product material: 3 mm black natural wood application on 3 mm natural black MDF wood. Product thickness is 6 mm. 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.)