Springfield Swivel Pivot Trac-Lock Springfield Seat

Track-Lock Swivel1100021-L12-7/8 post mount with bushing & tension knob for a snug fit.Made of high-strength aluminum with powder coat finish.Post mount with bushing for a snug fit.Locking Trac-Lock Swivel.Rotates 360.Fits 2-7/8 posts.Bolt Pattern: 5-1/2 X