Backrest Size(LxWxH): 30 11/16" x 16 9/16" x 8 11/16. Cigarette Lighter Cord Length: 57 1/16. Seat Pad Size(LxWxH): 14 15/16" x 15 3/4" x 1 3/8. 1x Car Cigarette Lighter Plug Adapter.