3.5v AutoStepä Coaxial Ophthalmoscope Head Only Lamps Magnifying Examination Spans entire width of back Style:Right Ear Spans entire width of back and can can be operated from either side of the chair * 4 heavy duty 5 casters with positive locking swivel and wheel brakes * Welded powder coated frame has a 5 year warranty * Elastic seat base and adjustable elastic back straps provide the ultimate in comfort * Includes 2 side trays * Model #655 Features: * Both arms drop independently and heavy duty spring pins lock arm securely in place * Exclusive one touch action drops arm securely in place * Chair can be rolled with arm down * Arms drop level with seat for easy transfer * Seat Width: 21* Overall Width: 31 feels comfortable 5v AutoStep© Coaxial Ophthalmoscope Head Only * The Welch Allyn AutoStep© Coaxial Ophthalmoscope uses a Halogen HPX lamp that provides 30% more light output for true tissue color and consistent long lasting illumination * Its 68 lenses in one diopter steps provide better resolution *