The 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. Features:- comes with Scotty no. 440 low profile track that allows for quick and easy set up- 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 specifications: - finish: black- track dimensions: 1 3/4" wide x 3/8" tall x (1" usable track)- mount height: stands 9tall""