Air Suspension Seat. Backrest Adjustable. Air Lumbar Support. Height Adjustment. Shock Absorber Lockable. Seat Angle Adjustment. Seat Slide Adjustable 210mm. Seatpan Adjustable 60mm. Weight up to 130kgs. GRAMMER part number 137153Unupholstered Spare parts available ex stock. Unupholstered ex stock. Head Rest : STGMSG903HR. Air Bag: STG903AB. Bush Kit: STG903BK. Level Control: STG903LC. Lumbar Support Switch: STG903LSS. Backrest Handle: STG903BRH. Shock Absorber: STG903SA. Seat Mounting Base: STG903CB. Seat Slide: STG903SS. Designed for both Bus and Train use.