Made from strong 2mm aluminium Crab’n Gear’s 3 way measure is the one everyone is trying to imitate. Laser cut to ensure 100% accuracy the measure has three cut outs to measure Mud Crabs 15cm min, Blue Swimmer 11.5cm min and Spanner Crabs 10cm min. There is a hole in the corner to tether the measure to something and a handy bottle opener to keep you refreshed.