CR2032 (5x1) Card Coin cell batteries have become evermore popular over the years and are found in a number of small electronic devices and products including medical devices such as children’s thermometers all the way through to every day products such as watches, calculators, toys, car key fobs, flameless candles and much more. In addition to this, they feature excellent leakage resistance. Please dispose of used batteries in a responsible manner. Keep out of reach of small children.