Tempress Navistyle Boat Seat - The High-back Navistyle(TM) Seating System is a perfect blend of ergonomic craftsmanship and smooth functionality. Subtle curves provide lumbar support while the tapered sides allow for lateral movements. Perfect blend of ergonomic craftsmanship and smooth functionalitySubtle curves provide lumbar support while the tapered sides allow for the lateral movements desired by active users in.no-pinch in. hinge, with automatic locking mechanismWill mount to any seat swivel or slide with the built in stainless steel t-nutsIncludes stainless steel mounting hardware