This resettable 5-digit counter a button operation design, easy to use. The 5-digit counter allows you to wear it on the wrist, makes it convenient to carry. The electronic counter is made of strong and sturdy material, can be used for a long time. The digital counter is powered by a button battery and is low power consumption. The counter is comfortable to use, the straps are skin-friendly, soft and fine. Specification: Material: Plastic. Color: Sapphire, pink, blue. Size: Counter: 3x2.5x1.2cm, Strap: 10.7x1.5cm. Battery: Button battery.(Not included) There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. 1x Counter.(Battery not included)