A rimless toilet is simply a toilet without a traditional rim. Instead of water flowing into the bowl all the way round the rim, a direct flush technique shoots water around the edge of a smooth pan.
Rimless toilets are much easier to clean than a traditional toilet, the rim on a standard toilet is difficult to get to and as a result is a breeding ground for limescale and germs. Not only are rimless toilets easier to clean, they are a lot more hygienic too. Rimless toilets also save water, even though the flushing system of a rimless toilet cleans more effectively than a regular toilet, it actually uses less water, the best of both worlds!