TUSITA 1" Universal Double Ball Mount with Two AMPS Round Plates, B 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 build – This 1-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.","Universal fit – Comes with two round ball bases and a B-size double socket arm. The ball-and-socket design lets you adjust angles almost infinitely. Fits 1-inch/B-size/25mm adapters and arms, and works with various mounts from different brands.","Strong and long-lasting – Made with powder-coated marine-grade aluminum and stainless steel parts. Tested with salt spray for thousands of hours (including bolts and springs) to resist saltwater corrosion. Cast as a single aluminum piece (not screwed together), it stays tough even in harsh conditions.","Industrial quality – Built to industrial standards for secure connections and equipment protection. It’s a drill-down mount; use the round plate with the AMPS hole pattern to attach to compatible holders."]