Sonar Bobber
Shows what fish is on the line before it's caught.
Overview
The Sonar Bobber is a tackle that reveals what fish is hooked before it is caught, displaying the fish outside the top-right of the fishing minigame window. This makes it useful for identifying catches early while fishing, especially when hunting for specific fish or checking what a bite will become.
It can be crafted, bought from 
- Using two Sonar Bobbers on an Advanced Iridium Rod provides no extra benefit over using one.
- It is not used in any bundles.
- It is not used in any quests.
- It can be used as a gray dye in the
Sewing Machine when placed in the spool with a dyeable clothing item.
Official description
Shows what fish is on the line before it's caught.