Bathroom and Kitchen Overflow Cleaning Brush 5 "Don't know about sinks but brilliant for the toilet!" Dr Weigelt 14 December 2020 Don't we all hate cleaning under the rim of the toilet bowl... and aren't we all tired of toilet brushes that claim they reach under that rim, only to let us down? This little brush really does do the job (obviously you have to use it EXCLUSIVELY in your toilet for hygiene reasons!) I am most pleased. If I get a separate one for the sink overflow, I will amend my review.