The Drive Viper Wheelchairs features a new frame style that eliminates seat guides and allows for custom backs and accessories. Padded armrests are included, as well as an adjustable back height. The durable, heavy gauge, flame retardant, black nylon upholstery resists mildew and bacteria. Wheelchair comes standard with "flip up" anti-tippers, and flip-back arms that allow for easy transfer. Composite mag-style wheels with aluminum hand rims are lightweight and maintenance free. A standard dual axle provides an easy transition of seat height to hemi-level. Push-to-lock wheel locks are also included.