[Game Clock] clock adopts a mechanical structure with a timing start button.It is simple to operate: press the left button, the left timer stops timing, the right timer starts timing, and . [Accurate Timing]The timing is accurate, and error does not 1 second.It is suitable for timing clocks of chess games. [Light and Handy]Sturdy plastic shell, light and handy, easy to carry, easy to carry, suitable for novelty, entertainment and practicality. [Molding Process]The shell adopts a unique molding process, which allows the clock to be placed at a small angle for better viewing, anti-, and -screen reading. Power supply mode: 1 battery (not included) Colour:As Shown Material:ABS Package Contents: 1 x Chess Clock timer Only the above package content, other products are not included. Note: Light reflection 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.