FIIISH JIG HEAD CRAZY SAND EEL 220 PEARL GREEN Thanks to a combination of shapes tested and developed in Brittany to imitate the swimming of a living sand eel, the unique swimming of the Crazy Sand Eel has been patented by Fiiish. It is called HSV ® (High swimming Vibration)These jig heads are designed to go on the lure of the same name.Characteristics - Weight: 30g and 90g - Per 2