Safe and stable for home use - lightweight and portable for travel anywhere. The Multichairs are constructed of materials that won't rust or corrode: aircraft grade aluminum, brass, stainless steel and plastic. The unique clamping design provides an open and accessible seat frame. Disassembles and packs into optional carrying cases for travel use. Seat height adjusts from 20" to 24" to provide access over even the highest toilets required by the ADA.