Springfield Marine 1601037 Power Rise Stand-Up Package - Taper-Lock. 3-Piece set include the following parts: - Power-rise stand-up pedestal- Quick tilt seat mount (#1615254-EC)- Gray pro stand-up seat (#1040213)- All bases sold separately Full Adjustable for Maximum Control and Comfort: - Use as a seat or leaning post- Adjusts from 23-1/2" to 30-1/2 (add 2-3/4" height for seat mount) (add 4-3/4" height for seat thickness)- Rotates 360°- Quick-tilt seat mount tilts in four snap-in angles (0°, 30°, 60°, 90°)