Attwood Fixed Height Height Pedestal Pro Boat Seat Mount This Attwood boat seat mount is designed for use with 2-78 pedestals. The added ribs on the mount and positive lock provide excellent strength and stability while out on the water. Easy to mount this boat seat mount features a standard 5 4 hole mounting pattern and is for use with fixed height pedestals. Product Features Air System Positive Lock 3 Tilt AO HelmDriver Approved California Residents WARNING Cancer and Reproductive Harm - P65Wa