Professional Digital Timer with Count up / Countdown Time Available for Chinese Chess, Chess,I-GO and Other 2 Players Board Game Chess clock timer is made of electronic components & ABS shell, environmentally friendly and . Requires two AA batteries(Not included) colour: Blue Material: plastic size: 161x100x62mm Package Contents: 1 x Chess clock 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.