Big John - Open Front Heavy Duty Toilet Seat is designed with an open front. This heavy duty toilet seat holds up to 1200 lbs. The hinges are steel and the elevated toilet seat is 2.5" higher than traditional toilet seats. Raised toilets are easier to use when you have mobility issues or if you are recovering from certain surgeries, like hip or knee replacement. The Big John raised toilet seat fits almost all round or elongated toilets. The stainless steel hinges are durable and provide unbreakable strength. Under the toilet seat there are stabilizing synthetic rubber bumpers. These bumpers help keep the seat from shifting, they grip the porcelain which helps stabilize transfers. This toilet seat has a 1200 lbs capacity and it is ADA compliant.