Say goodbye to a riser that shifts under you as you sit down. This one clips to the bowl with a dual locking mechanism on fastener rods, which needs little from the toilet shape and takes seconds to fit or remove, and the surrounding base support combined with a smooth, slightly forward-leaning seat curve is what stops the unit rocking as weight comes onto it. The rise is a fixed 6 in., 150 mm, which is substantial and comes from a single part with nothing to adjust or set wrongly. High-strength PP carries up to 300 lb. and resists staining, wiping clean with a cloth rather than absorbing anything, which matters in a bathroom fitting used every day. A lid comes with it to help contain odours, and the opening mechanism is shaped so the lid lifts with minimal hand contact. Because the whole unit unclamps in seconds, it can be taken off for cleaning underneath or removed entirely when the bathroom is used by someone who does not want it. Color: White polypropylene.