SALT - Eagle Claw Crab / Shellfish Gauge

SALT - Eagle Claw Crab / Shellfish Gauge. The Crab/Lobster/Shellfish Combo Gauge is notched to measure crab shells at 5-3/4", 6" and 6-1/4". It also diagrams the gender for easy identification. 1-1/2" Clam minimum size ring. 1-3/16" shrimp carapace measure.