For Chess Games: It does not require batteries, is by a clockwork, and is easy to use, similar to the working mode of a quartz clock. It is a timing tool used in chess games in European and American countries. Mechanical Structure: The mechanical structure with timing button is adopted to make timing operation intuitive, convenient and . Maintenance: The chess clock should avoid contact with materials, and avoid exposure to sunlight, rain, and near strong magnetic fields. High Precision: The daily error is no more than 1 second, suitable for timing clocks in chess games. Wooden Material: Made of wooden material and plastic, strong and durable, not easy to break. Wooden color design, exquisite workmanship. Colour: wood color Material: wood + plastic Size: 15x5.5x9cm Contents: 1 * Chess Timer Only the above content, other are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.