• The main role: Before Chartwork for drawing lines bearing line or course, the degree or amount of bearing line degree course line.
• SIZE:15inch
• Two hands each holding a ruler of David, alternately moved in parallel.
• Usage: When the move operation, the appropriate force to suppress static hand -foot, one hand pushing moving feet, two feet alternately moved in parallel until the required position. Alternately moving, to prevent the static foot displacement.
• comes with brass nickel plated divider compass picture attached along with water proof bag
• * nickel plated for long life

The main role: Before Chartwork for drawing lines bearing line or course, the degree or amount of bearing line degree course line. SIZE:15inch Two hands each holding a ruler of David, alternately moved in parallel. Usage: When the move operation, the appropriate force to suppress static hand -foot, one hand pushing moving feet, two feet alternately moved in parallel until the required position. Alternately moving, to prevent the static foot displacement. comes with brass nickel plated divider compass picture attached along with water proof bag * nickel plated for long life