Garelick 18 -23 in. EEz-in Blue Water Adjust. Height Positive Pin Type Lock 2.875 in. Seat Base Ribbed Stanchion Satin Anodized

Positive Pin Lock2-7/8 in. dia. ribbed stanchion plate. 9-1/4 in. diameter 6 hole base plate. Anodized protective finish helps prevent saltwater corrosion and weathering. Pin secures base at specific height in 1 in. increments. Stainless steel lock pin locates securing hole easily.