This is a 200V 18000μF electrolytic capacitor. The intended use is quite specialized, and it's quite expensive to purchase. I'm listing it because I have no use for it. The capacitance is within the acceptable range. It was stored for about six months after charging, and a small spark occurred when I placed a metal ruler on it to check the diameter. I believe the leakage current is low. There is no swelling in the pressure relief rubber plug (?). It comes with a fixing band. ※ Regarding the capacitance measurement, my measuring device always reads about 10% lower. Even so, I'm displaying the reading honestly.