Wise Weekender Series Base Runabout Jump Seat Jump Seat Dimensions - Height: 28"; Width: 15.5"; Depth: 15.5" Base Dimensions - Height:10"; Width:14"; Depth:13" Injection Molded Plastic Frame; Lift Seat Cushion for Underneath Storage Compartment High Compression Contoured Foam Padding Design with Marine Grade 26oz. Vinyl with UV & Mildew Inhibitors Easy Assembly / Instructions included. Mounts to Boat Floor. Consult your marine professional for ideal Installation.