This digital clock is perfect for chess and other games that require countdown, count up, bonus, and delay times. It's lightweight and small in size, so it fits in most bags conveniently and is portable to take to and from club or tournament events.

Functions:
Basic: Set basic time.
Bonus：Set basic time and bonus time.
Delay：Set basic time, second reading times and time.
Positive Timing: Set basic time to be 0 for overall rationing system

Specifications:
Material: ABS
Color: Black / Yellow (Optional)
Battery: 2 * AAA battery (Not included)
Screen size: 103 * 23mm / 4.06 * 0.91in
Item size: 140 * 88 * 45mm / 5.51 * 3.46 * 1.77in
Item weight: 105g / 3.70ounce
Package size: 150 * 100 * 50mm / 5.91 * 3.94 * 1.97in
Package weight: 157g / 5.54ounce

Packing List:
1 * Chess Clock