Our versatile in-hull transducer mounting solution for kayaks allows fishermen to get out on the water with their favorite Garmin equipment. The mount fits the Garmin dual beam transducer (77/200 kHz) and GT20-TM transducer (77/200 kHz/ClearVu), and is for use with compatible fishfinder and combo marine devices. It can withstand continuous water submersion without releasing, all while protecting your transducer (sold separately) within the kayak. The mount ? a foam pad with adhesive ? comes with installation instructions. No tools are required for installation; however, follow the instructions carefully to avoid damaging your boat.