I am going to purchase it several times because the price is cheap. I am using it without any problem. Although there is nothing in the pedestal part to say greedy, since corrosion starts from the electrode part and it becomes useless only when it is used, I think that it would be good if only the electrode part is sold.
It is appreciated that you can buy it with parts. In general, this part rusts the screw 3 years and becomes a ground fault. I also want the mounting screw made from stainless steel from the viewpoint of rust prevention.