The Corbelle toilet bowl delivers powerful, clean swirl-style flushing in a sleek skirted design. Kohler's most complete flush ever, Revolution 360 swirl flushing technology keeps your bowl cleaner longer than a conventional flush. Installation is easy with the ReadyLock(TM) system: the skirted trapway installs to the floor flange and attaches to the toilet, eliminating the need to drill holes while offering the same secure installation as non-skirted toilets.