X-Port Tactician Compass. Tactician Features 3 CombiDial with Tactical Quadrants show Wind Shifts and Headers. CourseMinder Moveable Bezel Heading Indicator Locks-In Rhumb or Lay Lines. Forward Lubber Line to Steer Magnetic Courses. Compact 4-1/4 Base Diameter. Low 2-3/4 Mounted Height. Easy to Install, mounting template provided. 25 Degree Heel Angle. Twist On/Off for Easy Removal. High-Visibility Blue 3 dial with Extra Large Numerals. 45 Degree Lubber Lines. 100% Repairable. Exclusive 5-Year Ritchie Warranty Tactician Features 3 CombiDial with Tactical Quadrants show Wind Shifts and Headers CourseMinder Moveable Bezel Heading Indicator Locks-In Rhumb or Lay Lines. Forward Lubber Line to Compact 4-1/4 Base Diameter. Low 2-3/4 Mounted Height Easy to Install, mounting template provided. 25 Degree Heel Angle Twist On/Off for Easy Removal High-Visibility Blue 3 dial with Extra Large Numerals 45 Degree Lubbe