The Scotty Locking Flush Deck Mount No. 244L features a locking lever along with a splash cover. For use with all Scotty post mount rod holders. To use the new Scotty "lock-down" mount system, simply choose the best direction to fish from and insert the rod holder or accessory, pushing the post straight down into the mount. Dimensions: 4" x 2"x 2" - Bolting dimensions: 1 5/16" x 3 3/16".