Locking raised toilet seat. The smart, front clamping mechanism locks the seat onto the toilet so you don't have to worry about it coming loose or shifting during use or transfer. Wide, contoured surface raises seat level by 5 1/2 in, provides maximum comfort and fits most toilet bowls from 11 to 14 in long. 280 lb capacity. Seat width is 16 1/8 in, seat depth is 17-5/16 in. Without arms.