Much like Arm & Hammer’s Spinbrush, Scrubbing Bubbles is marketing their Automatic Shower Cleaner product with the exact match domain name. Owning the product domain helps them own the space from all other automatic shower cleaners that exist now or the ones that may come out in the future from other manufacturers. This also puts them way ahead in search results too, they are #1 in Google, Yahoo and Bing for the search term.