Description Of Function: The parallel ruler is used for drawing azimuth lines or navigation lines and measuring azimuth line degrees or heading line degrees when chart operations are carried out
High Transparency: Our navigation parallel ruler has high transparency, clear scale and accurate measurement, so that have a nice experience of using it
Copper And Acrylic Material: Our parallel ruler is copper and acrylic material, the pure copper spacer is polished, not easy to oxidize and with stable face
Flexible Operation: This navigation parallel ruler is and flexible to operate, the actual needs and routine operation
Exquisite Craftsmanship: This marine navigation parallel ruler is light in weight, easy to carry, and exquisite craftsmanship, so achieve stable use