It is used for cleaning work with methylene chlorite. I like it very much because it is not comparable with other products (oil resistant gloves, rubber gloves). I think that it is worth more than the price.
In the WEB explanation, I bought it because it is "strength of acid and alkali resistance preeminent", but when the actual thing came and read the instruction manual, please do not use "chemical (acid · alkali) ... ...". What on earth is it?