☆ Instant purchase welcome ☆ One-of-a-kind item I have various items for sale, you might find what you're looking for ♪ #CHIKUWA ★☆★☆★☆★☆★ Switches between power on and off for the battery. Easily and effectively solves the problem of current leakage when the battery is not in use. Good electrical conductivity and stability, high corrosion resistance, and long service life. Easy to use, make sure the negative terminal of the battery and the clip are clean before attaching. Disconnect the cable from the battery terminal. The product is connected to the battery terminal. To turn off the power, simply rotate the switch (green) 3-4 times. To turn on the power, the switch must be properly tightened.