Clayton Acetal Small Teardrop Guitar Picks .63 mm 1 Dozen Acetal Polymer PicksAcetal/Polymer is an unique material among guitar picks It produces warm clear overtones, yet its durablility holds up to the most demanding performance All picks in this series are white, making them easy to find when accidently dropped on stage Strength is key to the ultimate performance The composition of this pick gives you just enough stiffness to give you those killer power chords, but has just enough give so that you're not busting strings left and right