Bob Tyrrell is one of the worlds leading black and grey tattoo artists. As technically innovative as it is awe-inspiring, Bob's unique style is rooted in his own mixing techniques. He has single-handedly revolutionized the industry and this style of work. In collaboration with Intenze Bob has progressed this a step further and formulated a black and grey pigment series to help provide the tools for other artists to reach his level of clarity, realism, value, and contrast.