Fibre reinforced engineering nylon offers strength, resilience and reliability. lt also comes with a removable gimbal pin and combination Side/Deck Mount which allows mounting on a flat deck surface or the side of a gunnel or transom. 

Interior Diameter: 1.85".
Mount Dimensions: 4" x 2" x 2".
Bolting dimensions: 1 5/16” x 3 3/16”.