The makes it easy to mount your GPS/fishfinder in whatever boat you are taking out without having to drill into the console. This SeaSucker mount is designed to be a perfectly mated platform to transition from the bottom of the Garmin's plastic base to the top of a 4.5" SeaSucker.• Deck diameter is 3.25"• Vacuum mount and deck sit 3"H• Powered by powerful 120-lb. pull-strength rated 4.5" vacuum mountThe platform is pre-drilled to work with Garmin units from the echoMAP and STRIKER lines, including: echoMAP CHIRP 42cvechoMAP CHIRP 43cvechoMAP CHIRP 44cvechoMAP CHIRP 45cvechoMAP CHIRP 52cvechoMAP CHIRP 53cvechoMAP CHIRP 54cvechoMAP CHIRP 55cvSTRIKER 4STRIKER 4cv Attaches with powerful 120-lb. pull-strength rated 4.5" vacuum mount Vacuum mount and deck sit 3"H | Garmin Striker Mount