John Petrucci Primetone Jazz III Pick, Red, 3/Player's Pack 1. 38 mm The John Petrucci Primetone Jazz III Pick is best described by its wielder. The legendary shredder says, “This pick's custom bevel is based on the edge of one of my own well-worn picks. It'll glide off your strings like glass with a loud, bold sound thanks to its super durable Ultex material. The Jazz III tip provides precision and clarity, while the custom grip ensures ultimate control. I hope you enjoy it as much as I do. ”  1. 38mm gauge