"The Best Chair for Bad Backs" is a unique, patented, ergonomic office chair called SwingChair. The chair's patented seat and backrest instantly and automatically adjusts positions to perfectly support a person from the moment they sit down and every move they make. SwingChair is the only chair in the world that allow a persons body to move naturally while the chair counter balances every move they make. Movement helps control back pain. See video at www.swingchair.com