Boaters everywhere are discovering the advantages of these unique mounting systems. For fishfinders, chartplotters, GPS and VHF radios, sturdy RAM ball mounts let you reposition the unit at will to accommodate any viewing angle. They'll hold your sensitive electronics steady all day long, yet you can easily remove the unit for safe keeping at day's end. All styles feature marine-grade powder-coated aluminum construction with stainless steel hardware. Mounting balls are made of premium rubber for maximum vibration resistance. Easy to install. Manufacturer's lifetime warranty.