The Scotty Sonar Mount features a mount that accommodates 5-7″ screens from leading electronics brands, constructed with engineering grade nylon and stainless steel. The easy grip t-knob allows for secure tightening and simple adjustments, while compatibility with all 1.5″ Scotty ball mounting system accessories makes it versatile. With corrosion proof materials, this system is built to last in both fresh and saltwater environments. Dual ball-joints provide unlimited positioning options.