Scotty 171 2.25" Ball System Arm

171 2.25" Ball System ArmFeatures: Engineering-grade nylon and Stainless steel construction Compatible with all 2.25″ 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 2.25″ ball joints allow for 360 degrees of rotation and 180 degrees of tilt at both ends For 10-12″ fish finders Holds your device securely in extreme conditions Easy grip T-knob for loosening or tightening Designed for 1/4” fasteners (sold separately)