The Scotty Transducer Arm Mount - Track Mount 141 has been developed for kayak anglers needing an easy way to install and remove transducers for transport. This Kayak/SUP Transducer Mounting Arm made of high strength composite material will give you years of service without any corrosion problems. Also included is the 415 Slip Discs that offer micro adjustments when needed. The Scotty Transducer mount telescopes from a compact 11.5 inches to 18 inches when fully extended and swivels 360 degrees. Includes the ever popular Scotty Gear Head Track Mount that allows you to mount this arm quickly and easily into most kayak track systems for quick attachment and removal.