166 1.5 Ball System BaseFeatures:Engineering-grade nylon and Stainless steel constructionCompatible with all 1.5 Scotty ball system accessoriesMulti hole top plate fits most popular electronics brandsUV resistant engineering grade nylon constructionCorrosion resistant stainless steel hardware1.5 ball joints allow for 360 degrees of rotation and 180 degrees of tilt at both ends2-1/4 square fixed baseFor 7-9 fish findersHolds your device securely in extreme conditionsEasy grip T-knob for loosening or tighteningDesigned for 1/4 fasteners (sold separately) Specifications:Type: Mounting BracketsBox Dimensions: 3″H x 4″W x 7″L WT: 0.2 lbsUPC: 062017001661