• Swivel mechanism (3600D, 3600, 3605) pneumatic height adjustment
• Swivel-tilt mechanism (3631D) Infinite position swivel tilt lock, back
   angle adjustment, pneumatic height adjustment, 6° forward tilt, back
   height adjustment, tension control
• Swivel-tilt lock mechanism (3660D) seat depth adjustment, pneumatic
   height adjustment, single position tilt lock, tension control
• Swivel mechanism for operators (3606DS) pneumatic height adjustment,
   seat depth adjustment
• Waterfall seat design to reduce muscle fatigue
• High density foam for support and durability
• Softly curved seat and back for ergonomic support
• Attractive modern spider design - 5 prong heavy duty nylon base
• 2" dual wheel carpet casters
• Finish - mechanism, base, arms, casters and trim standard in black
• ANSI / BIFMA
• Fixed height arm
• Height adjustable arm complete with polyurethane tear drop arm pad
   (3660D, 3600D, 3600)
• Ratchet back height adjustment (3660D)
• California Fire Code #117