1] Find a stack of (or stack up) more than 2 netting up to 4. Combine the nettings with metal wire to craft the Fish Net Trap.
Notice that the hole netting stack is used to craft a single Fish Net Trap instead of using just one netting.
2] Craft a Fish Net Trap.
Drag it out on the floor from your inventory and then back into it. Notice that each time you drag it of, the item loosed its quality until ruined.