This is natural deodorizing toilet sand with activated carbon. I used this when I first got my rabbit, but my rabbit switched to using only toilet sheets, so I no longer use this and would like to sell it. I felt that the activated carbon significantly reduced odors. One is new and unopened, and the other two are opened, with about a third remaining in one and about two handfuls used in the other. I'm selling all three as a set. Please feel free to ask any questions you may have(*´ω｀*) #rabbit #smallanimal #toilet #toiletsand #activatedcarbon #deodorant