Grammer Seat Assembly, Charcoal MATRIX CLOTHNotes: This seat has the wider (741) seat bottom cushion for extra comfort.Heading 1: 3.9" (100 mm) 12V/7 amp air suspension w/ built in air compressor with 2 wire lead; 7" (2Heading 2: 3.2" (80 mm) of infinite assisted height adjustment.Notes 2: Includes adjustable black vinyl armrests, upper backrest extension & operator's presence swNotes 3: Can accommodate up to 385 lbs.Notes 4: Air Suspension (12V Compressor)Notes 5: Suspension Stroke 4" (100 mm)Notes 6: Fore / Aft Adjustment