COMPACT AND LIGHTWEIGHT: This digital hand tally counter measures 6.6 x 3.5 x 2cm and weighs about 20g, compact and lightweight, you can put it in your pocket and take it with you anywhere, so that you can start counting anytime. There is a lanyard on it, you can hang it on your neck or wrist, convenient to use and anti-lost.DURABLE QUALITY: The high quality ABS plastic outer shell of this counter is wear resistance and drop resistance, not easy to break,with high durability. It is powered by a LR44 button battery(included) which can provides long-lasting power more than 250 hours, can be used for a long time without changing the battery.EASY TO OPERATE: Press the on\/off button turn on\/off the clicker. When the counter is on, the screen will display \