Kids enjoy using them to count various things in the day,wear out counters by trying to run up a high number in a short period of time. The nice and bright clickers is an incentive gift to give your kids to encourage them to work with numbers,and also gift for your families or other people in mas or other important festivals Our finger counter built-in battery and in 5-pack each unit, so you dont have to spend extra money and time to buy another one. You can take this lightweight and portable tally counter clicker at anytime and anywhere. Our Tally Counter is different from others which need to be held by your finger, the mechanical manual clicker with adjustable circle snap design, it not easy to fall off your finger. The lap counter clicker is a great ideal for keeping track of scoring in sports, counting laps, number of guests, attendance, knitting and other events.This digital counter clicker is universally used in the Dock, Bus station, School, lab, Competition, Stadium, Casino, Restaurant Bars, training activities ect. Material: PP Size: 3.8 x 3 x 1.6cm Package list: 5 x Finger Ring Counter(Red, Yellow, White, Light blue, Black)