Doryman Shellfish Calipers can be set from 3 to 6 1/2 inches to measure lobsters and crabs to specific legal sizes. While they float, these calipers also employ an attached lanyard to avoid any dropping mistakes. When the caliper is fully extended it becomes a 9 inch straight edge rule. When collapsed it can easily fit into a pocket. An easy twist knob regulates the calipers size and can be used to lock in measurements.
Doryman Shellfish Caliper – Floating Ruler – Reads 3–6.5 Inch
$9.25
- Measure the legal fishing sizes of lobsters and crabs, 3 to 6.5 inches
- Extends to a 9 inch long straight edge rule, collapses to fit in a pocket
- Made of expanded PVC, which allows the tool to float
- Handy lanyard provided to help eliminate accidental drops
- Easy twist knob can lock a measurement in place