Check the listing for details. Master 8 Japan INFINIX-U Grip Guitar Triangle Pick - 0.73mm Thin 6-Pack. Condition: New. Listed at 11.99 USD. The Master 8 INFINIX-U picks are a new type of durable pick material with a comfortable rounded edge. The picks glide across your strings with low friction and reduced pick noise bringing your guitar's tone to the fore-front. The INFINIX-U picks has an incredible textured sand-type grip like no other. Comfortable to hold, easy to play and incredible tone for stringed instrument players. Abrasion resistant Sand-like Grip Bright tone About Master 8Master 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.