• Height Adjustable Arm w/Semi-Loop Arm Pad (3600D, 3600, 3660D)
• Adjustable Seat Sliding Mechanism (3631D)
• Articulating Swivel Mechanism (3600D, 3600, 3605)
• Swivel Tilt Lock Mechanism (3600D, 3600, 3605)
• Height Adjustable Arm with Tear Drop Polyurethane Arm Pad (3600D, 3600)
• Height Adjustable Arm with Elongated Polyurethane Arm Pad (3600D, 3600)
• Width and Height Adjustable Arm w/Polyurethane Tear Drop Arm Pad
   (3600D, 3600)
• Width and Height Adjustable Arm w/elongated Polyurethane Arm Pad
   (3600D, 3600)
• Width and Height Adjustable Arm w/Polyurethane Loop Arm (3600D, 3600)
• Fixed Height Arm with Polyurethane Tear Drop Arm Pad (3600D, 3600)
• Height Adjustable Arm w/Polyurethane Swing Arm Pad (3600D, 3600,   3660D)
• Loop Arm - Polyurethane Steel Reinforced (3600D, 3600)
• Soft Tile Casters 2" (All Models)
• Enersorb™ Seat Foam (All Models)