1、COMPATIBLE MODELS: Compatible for Garmin GPS chart and fish finder, for GPSMAP 722, for GPSMAP 722xs, for GPSMAP 723, for GPSMAP, for 723xsv, for GPSMAP 742, for GPSMAP 742xs, for GPSMAP 743, for GPSMAP 743xsv, for Striker Plus 5cv, etc. 2、PRACTICAL ACCESSORY: This easy to mount design provides a stable platform for your fish finder, ensuring clear readings on the go. 3、UNIVERSAL: The bracket has a slick look that fits any kayak, and the multi hole design provides multiple mounting options and compatibility with most kayaks. 4、PREMIUM MATERIALS: Designed for the marine environment, the fish finder mount base is constructed of durable nylon and silicone materials that can withstand exposure to water and provide long lasting performance. 5、STABLE PERFORMANCE: The ball and mounting plate are molded in one piece, not screwed together, to extend the life and ensure the stability of the unit. The 1.5 inch ball is more reliable and stable in harsh marine environments compared to the 1 inch ball.