Fishing Rod Holder Black 90 Deg Flush Mount 4 Pack 90 DEGREE ROD HOLDER FOR VERTICAL FISHING ROD POSITION 4 PACK TOP MEASURES 3 7/8" X 2 3/8" OVERALL LENGTH 8 3/8" (8" FROM UNDER FLANGE) INSIDE DIAMETER 1 1/2" INSTALL IN 2" HOLE MOUNTING HOLE SPACING 2 3/4"