<p>NO BATTERY NEEDED: Wind-up mechanism ensures that you'll never have to interrupt a game to replace a battery</p> <p>Professional mechanical analog Chess Clock.</p> <p>INCREDIBLY ACCURATE: The timing is accurate, and the daily error is no more than 1 second.</p> <p>SO SIMPLE TO USE: Just wind it up and set the hands before . The tilted base makes it easier to view the clock dials during </p> <p>Recommend: Available for Chess,Chinese Chess, and I-GO.</p> <p>colour: as shown</p> <p>Material: Plastic</p> <p>Size: 15x5.5x9cm</p> <p>Package Contents:</p> <p>1 x Chess Timer</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light 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.</p>