But the forward facing sonar reading isn't the only edge of the ESR. The overall shape of this high quality jig heads were inspired from the Japanese rockfishing world where having a jig that cuts through current, sinks fast and prevents from snagging in rocks and other structure is important. You now understand the that you'll be able to reach your target quickly while using forward facing sonar but that it will also become your new favorite jig head even if you are not a technology addict. FEATURES: Equipped with a 2x strong Mustad hook Tungsten lure keeper that will hold your soft plastic lures firmly Perfectly fits the B-Vibe 3", Metacraw 2.4" & Fat Assassin 3.5" 1/8 oz - Hook #1/0 (3/pack) 1/4 oz - Hook #1/0 (3/pack) 3/8 oz - Hook #1/0 (2/pack)