Ball Mounting System w/Gear-Head Track. Features: The new Scotty Ball Mounting System with Gear-Head and Low Profile Track provides a mounting receptacle for a variety of Scotty post mount accessories. The Gear-Head s effortless drop and lock system allows the user to secure and re-position post mount accessories with just a twist. The Scotty No. 151 comes with Scotty s new No. 440 Low Profile Track that allows for quick and easy set up. The ball joint design of the Scotty No. 151 enables a smooth, full range of motion. Made from corrosion proof construction, this system provides a long service life in both fresh and salt water applications. Rod Holders or Scotty Accessories not included. Track Dimensions: 1-3/4 wide x 3/8 tall x (1 usable track). Mount Height: Stands 9 tall.