One of the most popular picks among top musicians worldwide, the Dunlop Tortex standard picks feature maximum memory and minimum wear like original tortoise shell picks. 1 dozen. Choose .50mm, .60mm, .73mm, .88mm, 1.0mm, or 1.14mm. Tortex picks are carefully designed and manufactured to give the characteristic maximum memory and minimum wear that made the original tortoiseshell famous. Dunlop's Tortex guitar picks are available in a variety of shapes and gauges. One dozen.