This is the JBL Barbed Paralyzer Tip Speargun Spearfishing Features: The JBL Barbed Paralyzer Tip is an economical spearhead with hardened steel tines. This tip creates an expanding 3 dimensional wound path which creates a paralyzing action for better holding power. The JBL Barbed Paralyzer Tip is an economical spearhead with hardened steel tines. This tip creates an expanding 3 dimensional wound path which creates a paralyzing action for better holding power. The JBL Barbed Paralyzer Tip is perfect for small to medium fish and is 12 in length and opens to 1.75" at the top."