Product name:Thumb Counter Product size about : 3.5*2.5*1.3CM/1.3*0.9*0.5in Battery: AG1*1 Product color: As shown in the figure Product material:ABS product features: 1. 100 luminous function: This counter will emit a flash around the product to remind you when you press it to 100. It adopts a push-type design, which is convenient and fast to count. It is especially suitable for scenes that require frequent counting, such as fitness, teaching, and event management. 2. Zeroing: Long press the counter button to easily reset to zero, ensuring that you can accurately start each new counting cycle, improve work efficiency, and avoid the trouble of repeated counting. 3. LED light source: There is a small button on the top of the device, which can turn on the LED light to illuminate the display so that you can see the display at night. The exquisite design can be worn comfortably on the thumb, does not take up space, and can be used anytime, anywhere, which is very suitable for outdoor activities and daily carry. 5. Multi-scenario application: Whether it is sports, classroom, speech or daily affairs, this counter can meet your needs. It is a good helper for various counting activities and is very popular. (Please note that this product is not waterproof) Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can at any time. We will give you some suggestions, but for your reference only. Shipment includes: 1 pc Thumb Counter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.