. This Marine Sailing instrument is used to measure angles of inclination, slope or elevation of an object such as your Boat or Sailing Vessel. PVD-Zirconium plating based on Chromium plating that will never tarnish or scratch.
Lifetime Wrranty on Movement.

It can be used to measure the inclines of positive slopes, which is when one observes the object from bottom up, or the declines of negative slopes, which is when one observes the object from top to bottom. This unit comes with a full lifetime warranty. Easy Installation using brass screws that are included.

Diameter: Five Inches
Height: Two Inches
Material; Brass
Lifetime Warranty on Movement