Wise 8WD1007-6-710 Captains Chair with Cushions, 12-18" Adjustable Height Pedestal and Seat Slide, White Deluxe Roto Molded Captains Chair, Cushion Set, 12"-18" Adjustable Pedestal and Fore/Aft Adjustable Seat Slide Includes Wise 2-3/8" Adjustable Pedestal #8WP21-374 and Wise Seat Slide #8WD374 Classified "AD" for Drivers Position with Easy Grip Lock Handles Seat Dimensions 21" Height, 17.5" Width, 24" Depth, 15" Seat Depth 6 Year Warranty on Frame, 3 Year Warranty on Upholstery