Tied on a 6/0 Big Game Hook this fly is primarily designed for sharks. From Makos to Lemons, This fly will get their attention. This is not a bad choice for those of you headed to Amazon or Bolivia for Payara, Tigers and Golden Dorado. This also makes a decent squid imitation for you Billfish angers when you don't necessarily want a huge popper. This is also a well known as a great GT fly. Huge GTs have crushed this fly which resemebels Lyretail Groupers red Snappers found among coarl heads in the Seychelles and other Pacific locales. This is a "big fish" fly that will get the job done.