Big John - Heavy Duty Toilet Seat with ABS Hinges is a closed front toilet seat made from a stain-resistant material and can hold up to 800 pounds. The Big John toilet seat provides five inches of surface contact, which is two inches more than standard toilet seats. This increases stability and comfort for the user. The bottom of the toilet seat has non-slip bumpers that prevent it from shifting. This bariatric toilet seat fits on most round and elongated toilets.