The Scotty Ball Mounting System with GearHead and Track provides a mounting receptacle for a variety of Scotty post mount accessories.The GearHead's effortless drop and lock system allows the user to secure and re-position post mount accessories with just a twist.The Scotty 151 comes with Scotty's new 440 Low Profile Track that allow for quick and easy set up.The ball joint design of the Scotty 151 enables a smooth, full range of motion.The corrosion proof construction of this system provides a long service life in both fresh and salt water applications.The Scotty 151 Ball Mounting System stands 9" tall.