Features:
- Adjusts from 12 in to 18 in in height
- Thick walled, 2 7/8 in polished anodized aluminum post
- Seat spider mount w/ adjustment knob and locking paddle handle
- 9 in diameter base w/ recessed mounting holes
- 360° rotation with locking knob
- Standard 5 1/4 in hole pattern fits virtually all marine seat brands
- Class AD certified per ABYC standards