Brocraft Universal 9 Aluminum Downrigger Gimbal Mount. This universal gimbal mount accepts downrigger gimbal tubes and installs into standard recessed rod holders. Machined from aluminum for durability and lightweight performance. The pre-drilled and tapped top plate fits BroCraft, Bigjon, Cannon, and Scotty downriggers. Simply slide the gimbal tube into your boat’s recessed rod holder and remove easily by pulling up and out. The 9-inch length provides proper positioning for most fishing applications. 6.5 x 5.3 x 12.6 inches.