2 7/8in. Adjustable Height Friction Lock Seat Base - Ribbed Series - 18in. to 23in. - Satin Anodized

Standard Friction Lock 2-7/8in. dia. ribbed stanchion plate. 9.25in. diameter 6 hole base plate Anodized protective finish helps prevent saltwater corrosion and weathering Seat raises or lowers, locks at desired height