People involved in portable dentistry praise this chair. Lightweight but very sturdy. Comfortable and safe for up to 500 pounds. High strength steel construction. Back adjusts, with patient in chair, from full upright to supine position. Adjustable seat height from 8" to 22". Can be used as standard sit-up chair. Folded dimensions: 23" x 34" x 8". Weighs 30 lbs. Comes in strong padded case.