Light weight, high energy, excellent high current discharge characteristics and so on. Main applications: gift, clock, computer motherboard, shake control device, flash product, toy, Bluetooth-compatible wireless product, machine core, electronic for key, IC card, digital product and so on. Many advantages such as good temperature, good sealing performance, long storage for time, stable discharge voltage and so on. The actual product has adhesive backing, which can be pasted on the object Specifications: Wire connector Specification: 1.25mm 2P Standard voltage: 3V Capacity: 210MAH Color : Yellow Material : Plastic, Metal; Length: 90mm/3.54inch(approx.) Diameter:20mm/0.79inch(approx.) Thickness:3mm/0.12inch(approx.) Quantity:5Pcs Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Include: 5Pcs x CMOS Button Cell Batteries (other accessories demo in the picture is not included.)