1X Strong Forged Hybrid Wider Gap Maximizes Hook Sets And Hybrid Bend For Extra Strength Fine Wire Vanadium Steel Needle Point P.T.F.E. Coating Tungsten Ned Head Provides Best Return On Forward Facing Sonar Lightweight Conical Keeper At Optimal Location Allows Soft Plastics To Collapse Around It, Holding Them In Place, While Not Throwing The Presentation Off Balance Weights Are Laser Etched On The Heads For Quick Reference And Will Not Come Off With Use Lead Free Weight