Gentle downward slope toward the front makes getting on and off easier. Lightweight, allplastic construction offers strength, durability and warmth. Fully sealed unit cleans with a hard-surface disinfectant. Two L-shaped molded-plastic brackets keep the raised seat firmly on the toilet. Can be adjusted to fit onto most sizes and shapes of toilets. Fitting and removing the seat is quick and easy. Overall: 13-3/4"W x 15-1/4"L, Bracket adjustment 12"_15". Seat Opening is 10.6" x 8". Weight capacity 420 lbs.