Check the listing for details. Master 8 Japan INFINIX Hard Polish and INFINIX-U DEMO Pack Medium - 6 Pack. Condition: New. Listed at 11.99 USD. Master 8 Japan DEMO Packs - Find your perfect pick! Medium: (1) INFINIX Hard Polish Jazz 1.0mm (1) INFINIX Hard Polish 351 .80mm (1) INFINIX Hard Polish Triangle .80mm (1) INFINIX-U Jazz 1.0mm (1) INFINIX-U 351 .88mm (1) INFINIX-U Triangle .88mm The Master 8 INFINIX Hard Polish picks are molded from a unique polymer that resists abrasion and provides lower pick noise and bright tone. The grip is rubberized on both sides of the pick. The Master 8 INFINIX-U is designed to look and feel more like celluloid but with higher durability. This pick features a sand-like grip. About Master 8 Master 8 is constantly pursuing product development to make musician's lives easier and more fulfilled. All the pick molding, polishing, and printing is done in-house. Since we have total control over the process we are able to constantly bring new innovations to the market. If your goal is to improve your tone, changing your pick is the easiest way to do it and is one of the most important factors to how the audience hears your instrument.