Our CoolCell picks are made of 100% celluloid in a white mother-of-pearl shell coloring. Our goal was to make a celluloid pick which would offer the guitarist as much gripping power as they need at any time during a performance. Not too little, not too much, but just enough without getting in the way. The CoolCell Triangle pick is truly a smart guitar pick. This pick design will actually change its gripping texture to give the dry, wet, or even slimy fingered guitarist the proper grip at any time.