Planet Waves PW-SHRED Shredder 12 Pack Guitar Picks Black Ice Premium Picks Includes: 1- Light (0.55mm) 3- Medium (.80mm) 2- Heavy (1.10mm) 1- Extra Heavy (1.50mm) Joe Satriani Signature Picks Includes: 1- Light (0.46mm) 2- Medium (0.71mm) 2- Heavy (0.96mm)