TUSITA 1.5" Universal Double Ball Mount with Two AMPS Round Plates, C Size Double Socket Arm - Short for Drill-Down Mounting

["Compatible with Garmin models: Striker 4, Striker 4dv, Striker Plus 4cv, Striker Vivid 4cv, echo 100, echo 150, echo 300c, ECHOMAP Plus 42cv, 43cv, 44cv, 45cv, and ECHOMAP UHD2 6\"\".","Heavy Duty – This marine electronics mount can hold up to 15.5 lbs when stationary and 4.5 lbs when in motion. The 1.5-inch double ball mount is a tough, multi-angle drilling base for tablets, phones, fish finders, and more. It installs directly on tables, carts, desks, vehicles, boats, or any flat surface (comes with 4 sets of 316 marine-grade stainless steel machine screws, lock nuts, and sheet metal screws).","Sturdy and Long-Lasting – Made with powder-coated marine-grade aluminum and stainless steel parts. It has undergone thousands of hours of salt spray testing (including stainless steel bolts and springs) to resist saltwater corrosion. Cast as a single aluminum piece (not screwed together), it stays strong even in harsh environments.","Universal Fit – Includes two round ball bases and a C-size 5.5-inch double socket arm. The ball-and-socket design allows for nearly endless angle adjustments. It fits 1.5-inch/C-size/38mm adapters and arms, and works with mounts from various brands.","Industrial-Grade Quality – Built to industrial standards for secure connections and device protection. It’s a drill-down mount; use the round plate with the AMPS hole pattern to attach to compatible device holders."]