Measure the catch of the day with a Promar(R) Lobster/Crab Gauge. Constructed from aluminum, this gauge measures in various increments. Be sure to check local regulations for the correct gauge applicable. FEATURES: Constructed from aluminum Measure in various increments Length: 7 in., 6 1/4 in.,5 3/4 in., 3 1/4 in. Region: Multi-Purpose Species: Lobster, Crab, Abalone, and Clam Model: AC-310