For Chess Games: It does not require batteries, is driven by a clockwork, and is easy to use, similar to the working mode of a quartz clock. It is 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 timing operation intuitive, convenient and accurate. Special Maintenance: The chess clock should avoid contact with corrosive materials, and avoid exposure to sunlight, rain, drops and places near strong magnetic fields. High Precision: The daily error is no more than 1 second, suitable for timing clocks in various 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 Package Contents: 1 * 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!