"deep-diver" or "shallow-diver". Plugs can also be designed to hover (neutral buoyancy), sink slowly, or sink rapidly. Some have a small metal ball inside to "rattle" when retrieved.
"deep-diver" or "shallow-diver". Plugs can also be designed to float (neutral buoyancy), descend gradually, or descend quickly. Some have a small metal ball inside to "rattle" when retrieved.