Drive Viper Lightweight Manual Wheelchair is a foldable, durable, and high strength chair. Flip-back arms allow for easy transfer. The chair's back is height adjustable from 18" - 20". The front-mounted release lever on the Drive lightweight wheelchair can be flipped up or down with ease. Drive manual wheelchair comes standard with "flip up" anti-tippers and is easier to propel and transport than many other chairs. Available in 3 different seat sizes and weighing only 32 lbs but holding up to 300 lbs, this is a great buy.