The Toilet Riser by HART Mobility is a 3.5" high toilet base riser designed for individuals with mobility issues, including the elderly. Its oval shape and standard bowl shape make it compatible with all brands of toilets. Made of PVC material in a white color, this Toilet Elevator is suitable for toilets and comes with a single pack. The interior dimensions of 23 inches in width and 11.5 inches in diameter provide added space for comfortable use. Easy to install in the bathroom, this Toilet Riser offers added height for improved accessibility.