Wise Blast-Off Centric 1 Frame, Pro Style Seat Wise 8WD1464 Blast-Off Tour Series Centric 1 Pro Style Folding Boat Seat Rotational Molded Frame with Integrated No-Pinch Hinges Molded Foam Padding, Marine Grade UV and Mildew Treated 28 oz. Vinyl with Double Top-Stitch Construction Mounts to a BIA Standard 4 Bolt Pedestal System Seat Dimensions - Height: 21", Width: 20", Depth: 23", Seat Depth: 16"