Grooved, thick-wall polished anodised aluminium shaft with a brushed aluminium base.
- 2 7/8" diameter post w/ polished anodized aluminium construction.
- Seat spider mount w/ adjustment knob and locking paddle handle.
- 9" diameter base w/ recessed mounting holes.
- 360° rotation with locking knob.
- Standard 5 1/4" hole pattern fits virtually all marine seat brands.