A very popular long lasting silicone gel fly floatant designed by Dave Whitlock. Just squeeze a drop onto your forefinger and liquefy by rubbing against your thumb. Wipe the liquefied floatant onto the hackles, tail and wings or even the body of your fly. Best when used sparingly. Can darken some colors slightly if used too heavily. This can be used to your advantage when matching some hatches. Temperature sensitive. Works best at body temperature. Comes in a 1/2 oz. squeeze bottle w/snap top.