Wise 8WD015-6-710 Standard Pilot Chair with Cushions, 12-18" Adjustable Height Pedestal and Seat Slide, White Roto Molded Chair, Snap-On Cushion Set, 12"-18" Adjustable Pedestal and Fore/Aft Adjustable Seat Slide Includes Wise 2-7/8" Adjustable Pedestal #8WP21-374 and Wise Seat Slide #8WD374 Classified "AD" for Drivers Position with Easy Grip Lock Handles Seat Dimensions 18.25" Height, 17.75" Width, 22.5" Depth, 17" Seat Depth 5 Year Warranty on Frame, 3 Year Warranty on Upholstery