The Invacare Tracer IV Wheelchair is a high-quality, adjustable wheelchair for those with limited mobility. Combining a reinforced carbon steel frame which includes gusseted sides, caster journals, and dual cross braces, this wheelchair is durable and low-maintenance. For excellent performance, the corded urethane rear tires are mounted on "no flex" wheels. The heavy duty inner liners keep the seat and back from stretching while the midnight blue vinyl resists mildew, bacteria and is flame retardant. This wheelchair features dual axle position which allows variation of seat-to-floor height, and the arm rests are padded for extra comfort.