Wise Blast-Off Oversize Frame Pro Casting Seat Wise 8WD1467 Blast-Off Tour Series Oversize Pro Casting Seat High Impact Plastic Injection Molded Frame High Compression 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: 7", Width: 17.5", Depth: 14", Seat Depth: 9"