• Swivel-tilt mechanism (4500D, 4500) Pneumatic height adjustment,
   tension control
• Contoured back for added lateral back support
• Built-in lumbar support
• High density seat and back foam for comfort and durability
• Waterfall seat to reduce muscle fatigue
• Oval steel frame and/or arms finished with high impact, textured, black
   Crinkle epoxy powder coat electrostatically applied for corrosion resistance
• Fully upholstered seat and back
• 5 prong heavy duty nylon base
• 2" dual wheel carpet casters
• Finish - mechanism, arms, base, casters and trim available in black only
• California Fire Code #117
• ANSI/BIFMA