The RAM Double Socket Arm D Size Long (RAM-D-201U-E) provides extended reach for large fishfinder and chartplotter installations. This long-length arm features dual sockets that accommodate 57mm D-size ball bases with a single spring mechanism enabling pivot adjustment at both ends. The socket technology allows near-infinite angle adjustment for optimal viewing positions.The marine-grade powder-coated aluminium construction resists corrosion in harsh saltwater environments. Compatible with any D-size RAM ball components including mounting bases and device holders. The extended length provides greater reach for difficult mounting locations.RAM-D-201U-E – Long D-Size Double Socket Arm Extended Length Design – Long arm for greater reach and positioning flexibility 57mm D-Size Sockets – Dual sockets for 2.25-inch ball bases Single Spring Mechanism – Opens sockets for easy ball insertion and pivoting Marine-Grade Aluminium – Powder-coated for saltwater corrosion resistance