This toilet seat is 4" high. Made from polyethylene and moulded as a one piece seat to reduce any hygiene issues. To further reduce cross infection, the seat has permanent anti-bacterial qualitiesand is resistant to stains and odour. Simple to remove and fit,as the seat attaches to the toilet using two adjustable fixing brackets. The two adjustable fixing brackets also provides theuser with a secure seating position. Length 15-1/2". Width 14-3/4".