This is not just a minnow trap used for crayfish.
The larger mesh pattern and cone opening are designed for crayfish.
Crayfish are excellent bait for all game fish: northern, walleye, bass, catfish, trout, and even panfish. These traps can be easily used in streams or lakes.
Some states have restrictions on mesh size, so please check your state regulations.
Remember, crayfish are a delicacy for people as well!