The frame is built of mild steel that has been coated with epoxy powder and given a phosphate treatment to prevent corrosion. The bowl carrier is secured in place and the toilet seat can be raised. The vinyl backrest is made of vinyl and has a removable, padded seat. The armrests support you when you sit or transfer, and you may change the height. The bowl can be autoclaved up to 120 degrees with a lid on it.