JD Jazztone 204 Guitar Picks are the smallest in the Jazztone lineup. It has a more rounded edges. Jazztone 204 picks are designed with accuracy and tone as their two key elements. Developed specifically for the Jazz guitarist, 204 JazzTone picks deliver great tone and speed for any player who needs to play FAST! JD Jazztones, with a super gripping surface, are non-flexible, great for speed and have a precision contoured edge to insure smooth release.