The Swivl-Eze Swivl-Offset seat base features a 6" offset that allows additional seat clearance in any position, just in case
you need more room to maneuver. Weight capacity: 250 lbs.
This accomplished what I needed it to...move the seat over without tearing up the floor and remounting the base. However, it is a bit challenging to get used to. When the boat accelerates or changes direction, the swivel does just that...it swivels with the change in momentum. Also, if your seat pedestal base has any give to it, the offset swivel creates enough torque on the base that the seat sits off level causing it to tilt to one direction. I am 225 lbs...probably works better with lighter weight users.