Item Type: Electronic Finger Counter Product Material: Plastic Product Specifications: 5 Pcs Product Application: Household Use Application Scope: Most Scenarios Battery Type: Button Electronic (shipped with Built in Battery) Battery Model: Ag10 Battery Capacity: 60mah Color: Green, Yellow, Orange, Purple, Red Package List 5 x Electronic Finger Counter 1Premium Materials: Made of plastic, the counter is durable, environmentally friendly, reusable and has a long service life. 2Adjustable Ring: Equipped with adjustable ring, you can wear it according to your finger size. 3Lightweight and Portable: Light weight, portable, easy to carry, built in battery, suitable for recording scores in outdoor sports. 4Packing Quantity: There are 5 counters, which can meet different needs, with rich colors and sufficient quantities. 5Wide Applications: With light, can be used in schools, laboratories, competitions, stadiums, restaurants and bars, training activities, other indoor counting, etc.