Marlin Ruler


The original Marlin Ruler by Release Ruler measures both Blue & Black Marlin.

  • DIMENSIONS – the marlin ruler is 3″ wide x 150″ long and can record marlin up to 1000 lbs.
  • ACCURATE – Our UV coated printing process produces true to scale rulers. Made from a PVC vinyl material which is dimensionally stable.
  • FISH SCALE – A bonus feature is the patented weight estimation based on the growth scale for marlin. No other ruler offers this innovation.
  • VIVID COLORS – our award winning graphic design offers fisherman the quickest ruler measurement, highest fin to ruler contrast and the best option for catch, photo and release.
  • Perfect Fishermans Gift
  • Made in the USA
  • Easy to use
  • Measure tournament minimums
  • Never guess weight again
  • Heavy duty long lasting
  • Non Corrosive
  • Endorsed by The Billfish Foundation
  • Measures 3 x 150-inches
  • 100% Satisfaction Guaranteed


Created for catch and release and minimum tournament regulations, simply place the Release Ruler over the lower jaw region of your marlin and read the graphic at the tail fork. The Release Ruler is heavy duty water resistant material and will last for years.  Tagging fisherman will love getting a more realistic measurement versus guessing. Eliminate the need to harvest a marlin for the sake of weight! Use the patented weight estimating Release Ruler today. 100% Satisfaction Guaranteed. For comments and questions contact



Additional information



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