TEMPRESS® ELITE HELM HIGH-BACK SEAT - CHARCOAL/GREYRotationally molded helm seat incorporates the NaviStyle® StylePanel® system to ensure superior comfort unequaled quality & style. Constructed of materials designed to withstand the rigors of the marine environment. Contoured StylePanels® create a comfortable seating surface that is ergonomically correct without the excessive use of foam. Features built-in lumbar support & rolled front edge. Requires the use of slide mount or universal mount. 8 bolt hole pattern on base. Outer bolt holes on center measures 5"x12". Dimensions: 23.5"Wx26"Hx27.5"D (High-Back).