RIO's Shimmy Frog will excite you about bass fishing with a fly. When at rest, this fly sits at about a 45 degree angle with the eyes at the surface just like a real frog at rest. When a real frog gets frightened, it dives and swims away. This fly does the same, but it shimmys and shakes as it does. Bass find this irresistible. Tied on a 3/0 Hook.