The chair is made of polypropolene and is virtually indestructible. If it gets dirty, simply wash it with soap and water. If you are a senior citizen residing in an assisted living community, you will appreciate the padded high back to support your head and shoulders. The comfortable padded seat, that can give hours of sitting, without feeling uncomfortable. This chair will provide complete safety for those so incapacitated that they might fall out of an ordinary chair, due to the tray and strap design that makes falling out virtually impossible. The heavy frame and wide stance makes this chair practically impossible to turn over and the most important feature is that this chair has adjustable heights, so a nurse does not have to bend over and actually lift someone out of the chair.