The Springfield 2-7/8" Trac-Lock™ III Locking Swivel delivers smooth, lockable 360° rotation for boat seats with a centrally located tension knob accessible by either hand. Built from high-strength aluminum with a powder-coated finish, this post-mount swivel installs into standard 2-7/8" pedestals and adds a modest height boost to your seating setup.

Specifications:

• Post mount diameter: 2-7/8"
• Includes bushing for snug, rattle-free fit
• Centrally located tension knob -- operable with left or right hand
• Material: high-strength aluminum
• Finish: powder-coated
• Adds 7/8" to pedestal height