• Swivel-tilt Mechanism, infinite position swivel tilt lock, back angle
   adjustment, back height adjustment, pneumatic height adjustment,
   tension control
• High density seat and back foam contoured for lateral support and
   and comfort
• Height adjustable arm with polyurethane arm pads (3900)
• 5 prong heavy duty nylon base
• 2" dual wheel carpet casters
• Finish - mechanism, arms, base, casters and trim standard in black
• California Fire Code #117
• ANSI/BIFMA