This Attwood Snap-Lock 1.77-Inch Post is a sturdy and height-adjustable post on which a seat can be mounted. This power pedestal can be adjusted to heights between 24 and 30 inches. The post has an exterior diameter of 1.77 inches and attaches to a base (sold separately) using the Snap-Lock system. This clear anodized post has an integrated seat mount, and it meets ABYC Code B standards. Attwood Corporation has been an award-winning leader in engineering, testing, and manufacturing the highest quality marine products for over 100 years. We deliver safe and reliable lighting, fuel systems, water systems, seating & pedestals, swim ladders, custom upholstery, and general marine accessories that are easy to install and meet regulatory compliance.