FISHFINDER MOUNT FOR SQUARE & ROUND BASE (SEACHOICE) 5 Black

Provides an adjustable mounting platform for fish finders or chart plotters with square or round bases. Mates to StarPort, StarPort HD, SidePort, Rail Mount, RIBPort, and E-Series USB StarPort bases (not included). Dimensions: 4\" x 4\" (platform surface); 5-1/2\" (height with mount arm).