This raised toilet seat is extremely comfortable as it is made from foam which is soft and forgiving. It is very easy to fit as it requires no screw fixings but fits securely over all standard toilet bowls. It is very hygenic and easy to clean due to the tough plastic skin. Height 110mm (4 ½"), width 380mm (15"), length410mm (16"). Aperture 200 x 250mm (8 x 10").