Scotty 161 1.5" Ball System Arms

161 1.5" Ball System ArmsFeatures: Engineering-grade nylon and stainless steel construction Compatible with all 1.5″ Scotty ball system accessories The multi-hole top plate fits most popular electronics brands UV-resistant engineering-grade nylon construction Corrosion-resistant stainless steel hardware 1.5″ ball joints allow for 360 degrees of rotation and 180 degrees of tilt at both ends 2-1/4” square fixed base For 7-9″ fish finders Holds your device securely in extreme conditions Easy grip T-knob for loosening or tightening Designed for 1/4” fasteners (sold separately)