The picks used by top musicians worldwide. Tortex picks are carefully designed and manufactured to give the characteristic maximum memory and minimum wear that made original tortoise shell famous. Dunlop's Tortex picks are available in a variety of shapes and gauges.Tortex gauges correspond to these millimeters/colors unless otherwise noted: .50-Red, .60-Orange, .73-Yellow, .88-Green, 1.0-Blue, 1.14-Purple, 1.35-Black, 1.5-White.Dunlop Manufacturing produces many different types and sizes of picks to suit the varied preferences of today's musicians. Dunlop's wide variety of gauges, shapes, sizes, and materials allows the player to select the exact pick for his/her own particular style of playing. Exceptionally crafted and finished picks for every player's needs.