Brocraft Universal Portable Transducer Bracket + Fishfinder Mount. Portable Transducer Bracket,Quick removal from boat Construction by marine grade 6061-T6 aluminum with CNC processing. 360 adjustable swivel Universal Fishfinder mount , it can be adapted to most fishfinder brands including Lowrance, Eagle, Humminbird and Garmin Simple depth adjustment provides low- and high-speed readings Large clamp Max. opening 2-3/4 "