SCOTTY 141 KAYAK/SUP TRANSDUCER MOUNT W/ 438 0141141 Kayak/SUP Transducer Mounting Arm w/438 Gear-HeadKayak/Sup Transducer Mounting Arm made of high strength composite material that will give you years of service - withoutany 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 to 18 when fully extended and swivel 360. Includes the ever popular Scotty the 141 Track Adapter Mount that will allow you to install one of the Scotty Fishfinder mounts.