The HD Innovations UMS Pole Adapter gives forward-facing sonar anglers a secure 1.5 in. ball connection for HD Innovations carbon series poles, helping position transducers accurately for bass, walleye, crappie, perch, and panfish on ice or open water. CNC-machined aluminum construction adds strength, while the rubber-overcoated 1.5 in. ball provides a stable connection within the HD UMS mounting system. A locking and anti-rotation slot helps keep the pole indexed and controlled during scanning, and full compatibility with HD Innovations ice poles makes it useful across seasonal sonar setups. The adapter requires the HD Innovations UMS Arm (FishUSA #: F27481) to use the included 1/4 in. locking pin, and only one pin is used with the HD UMS system.1.5 in. ball pole adapter fits HD Innovations carbon series polesCNC-machined aluminum construction with rubber-overcoated ball provides strength and gripLocking and anti-rotation slot helps maintain pole position and transducer directionFully compatible with HD Innovations ice polesRequires HD Innovations UMS Arm (FishUSA #: F27481) to use locking pinIncludes:Pole adapter1/4' locking pin Please note: Effective in trolling speeds up to 8 mph. Only one pin is used with HD UMS system.