The RAM Mounts Double Ball Mount for Garmin Striker & more locks your fish finder exactly where you need it when scanning structure, following bait, and tracking fish from the bow, kayak, or console. This mount attaches directly to the bottom of Garmin Echo and Striker 4 Series units and uses RAM's patented 1-inch rubber ball-and-socket system to hold your screen steady in rough water while still allowing quick adjustments. Dual adjustment points at both ends of the arm give you near-infinite positioning, so you can dial in the perfect viewing angle while trolling for walleye, casting for bass, or vertical fishing for panfish. The rubber ball design absorbs vibration and shock, keeping your electronics secure and readable throughout the day.Attaches directly to the bottom of Garmin Echo and Striker 4 Series unitsPatented 1-inch rubber ball and socket system dampens vibrationDual socket arm provides near-infinite adjustment for ideal viewing anglesHolds electronics securely in boats, kayaks, and other fishing setupsSpecifications:Overall Height: 5'Weight: 0.75 lbs.Socket to socket length: 3'4-hole AMPS: 1.181' x 1.496'3-hole 120-degree: 1.812' diameterPlate size: 2.5' diameterBall size: 1'Marine-grade aluminumWeight capacity for standard use is 2 lbs.Weight capacity for heavy-duty use is 1 lbs.Includes:Ram Double Ball Mount3 #8-32 x 5/8' machine screws3 8-32 nylock nutsManufacturer's lifetime warranty