Looks like a washing stone. I had one of those about 10 years ago. That thing was seriously crazy, especially when you have to use lime later on too.
Luffa scrubSome love this is...ShkrrHrrrkThat destroyer over there sure is taking a long bath.Now then, please come over here.Body brush? I don't know any such thing.Referring to her equipment linePloshHer docking time's gonna increase...You're gonna feel dizzy at this rate, y'know?