The Scotty Side / Deck Mount allows you to mount any Scotty accessory on any flat surface. Scotty mounts can be positioned into either the top or side holes and lock into place thanks to Scotty's spline system with 360 degree adjustability. Easily swap your rod holders, fish finder mount, GPS mount or other Scotty fishing accessories with these mounts. Overall dimensions are 4" x 2" x 2". The bolting dimensions are 1 5/16" x 3 3/16"