The Springfield Pedestal Rise – Plug In 14 1/4" is a sturdy, adjustable leg for boat seats, made of anodized aluminum. This pedestal rotates 360° and can be locked in any position, making it last for years. It fits easily into any 2/8" and 3/8" base and provides a safe and stable seat that meets the ABYH H-31 standard for Class B. With a height adjustment from 36 to 53cm by air pressure and a secure attachment for the boat seat, it is designed to withstand harsh marine conditions.