Hareline's Predator Eyes are made of tungsten (wolfram). Tungsten's density is high so these eyes will take your flies deep fast. Eyes can be attached on the hook shank from the narrow point of eyes. They can be placed above or underneath the hook shank whether you want the fly to swim normally or upside down. Medium size eyes weighs 1,2 grams and small size 0,7 grams.

10 pieces per package.