Scotty #368 Universal Sounder Mount Scotty Universal Sounder Mount uses a new multi pattern universal top plate;Patented Scotty post mount design;Quick removal and infinitely adjustable rotation;Fasten your sounder bracket to the top plate then lock down the sounder mount into your favorite Scotty mounting system;Only intended for use with fish finders and other marine electronics (Sounder, No. 241 Side/Deck Mount and sounder fasteners not included)