For chess games: It does not require batteries, is driven by a clock, and is easy to use, similar to the working mode of a quartz clock. a timing tool used in most chess games in European and American countries. Mechanical structure: The mechanical structure with timing start button is adopted to make the timing operation intuitive, convenient and accurate. Special maintenance: The chess clock should avoid contact with corrosive materials and avoid exposure to sunlight, rain, dripping, and places close to strong magnetic. High precision: The daily error does not exceed 1 second, suitable for timing clocks in various chess games. Wooden material: Made of wood and plastic, strong and durable, not easy to break. Wooden color, exquisite workmanship. Color: wood color Material: wood + plastic Size: 15x5.5x9cm Package Contents: 2 x Chess Timer Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the