Check the listing for details. Pick Boy Black Polyacetal Mandolin Picks .80 mm 10 Pack. Color: Black, Condition: New. Listed at 12.69 USD. Pickboy Jazz picks, crafted from durable polyacetal, offer a bright tone and a smooth release that's perfect for jazz guitarists. These picks are designed for comfort and precision, with a size and shape that feels natural in your hand and a tip that delivers exceptional articulation. Variety of Shapes and Thicknesses for Optimal Playing Comfort Pickboy Jazz picks are available in a variety of shapes and thicknesses to suit your playing style and preferences. Whether you prefer a traditional jazz shape or Pickboy's popular Pos A Grip design, you'll find the perfect pick to enhance your jazz playing. These picks are available in 0.75, 1.00, 1.20, and 1.