Ernie Ball Pick Pack EB 9178 12 X MED ASST COL PICK .72mm Save £-6.00 £6.00 SKU P09178 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity ADD TO CART - READY TO SHIP! Cellulose Acetate Nitrate. Mixed Color Picks, .72mm bag of 12.