The seat can be adjusted to increase the height of the toilet seat by 50 mm, 100 mm or 150 mm, and includes flip-up lid and lift-up armrests to facilitate lateral transfers from a wheelchair or commode. Installs over existing toilet seat hinging points, this Toilet Seat Raiser will fit most toilets. Armrest Height: 200 mm (above toilet seat) Overall Depth: 480 mm Overall Width: 600 mm Width between armrests: 480 mm Seat depth: 460 mm Seat Width: 360 mm Height: 50 mm, 100 mm, 150 mm (adjustable) Product weight: 3.8 kg Maximum user weight: 136 kg