This Bzzz is for the UV sanitizer. There is a package that has just the sanitizer, then there is a "flexpak" that has a brush and extra brush heads. The wording makes it sound like you're only getting the sanitizer, but the picture is of the flexpak. Either way, it's really needed, as this thing gets dirty easily and has that pink "mold" and smell quickly. I clean it about every other week with alcohol, including the brush cap, but there are still too many crevices that have no access. I hope this stops that. I also need to get a new brush head, and they are $20 each, so I really hope this is all new everything. We'll see!