Crab Gauge Also Clam & Shrimp

Danielson(R) Crab, Clam, & Shrimp Gauge

This gauge is the quick and accurate way to measure your catch. Notched to measure crab shells at 5-3/4",
6" and 6-1/4", it also diagrams the gender for easy identification. A 1-1/2" ring makes it easy to verify the most commonly required minimum clam shell size. It also features a 1-3/16" shrimp carapace measure and a hole for attaching a lanyard.