The Smartlures Plastic Eyes Pearl are used in all flies from Smartlures.nl now a days. The reason is very simple these Smartlures Plastic Eyes are three-dimensional and not only realistic but they also add a little weight to the fly. So the flies get a little jigging action just by adding the Smartlures Plastic Eyes. We use these eyes for our perch,zander,asp, pike and sea bass streamers.
4,5mm we use for our perch, asp and small sea bass flies, 6mm we use for our smaller sized zander flies and bigger perch, asp and sea bass flies, 7,5mm we use for our big zander flies, smaller sized pike flies and also for our big sea bass flies and off course you can use the Smartlures Plastic Eyes for many more fresh and salt water patterns.