One New Aftermarket KM 136 Uni Pro Seat Suspension, Grammer MSG75531 Air Seat or Grammer MSG65531 Mechanical Seat PN 7916 or 7882 is Black Vinyl, 7776 is Black Fabric, 8189 is Brown Vinyl, 8188 is Gray Vinyl and 8462 is TwoTone Gray Vinyl Tech InfoDurable Black Vinyl coveringFoam cushion to ensure operator comfortErgonomically contoured cushionsNotches on steel tubing allow for height adjustmentHeadrest is easily attached to KM 136 Backrest CushionStrong wear resistance