Attwood Corporation Seat Mount Clamp-On With Swivel Filed under Fishing Seats April 30, 2013 Attwood Seat Clamp- – Clamp SeatM w/Swivel-Clamp-On Boat Seat Swivel-F E A T U R E S- Adjusts from 7-1/2″ – 18″ Black powder coated swivel Fits most seat hold patternsSale Price: $23.26Read MoreFree Shipping on orders of $25 or more