Package ContentsYou will receive 2 black and white electronic counters, enough for your daily use and replacement, and can also be shared with your friends and family. Dimensions Each counter is about 3 cm long, 2.1 cm, you can carry this lightweight and portable lap counter anytime, anywhere. Durable Material The key counter shell is made of high-quality ABS material, which is strong and durable, beautiful in appearance, comfortable to touch, and can be used for a long time. Energy-saving counter Our counter is energy-saving and environmentally friendly. When not in use, it will automatically shut down and will not display the number until it is restarted. Press the first button to start and display the number before the last stop. Wide ApplicationsThese electronic finger counters are suitable for recording running laps, skipping rope, etc., and are widely used in schools, laboratories, competitions, training activities, etc.