White Letter 'z' Centered Inside Black Circle clip art

<!-- Size: 140 px -- >
<a href="http://www.clker.com/clipart-148161"><img src='http://www.clker.com/cliparts/0/1/R/k/V/d/white-letter-z-centered-inside-black-circle-th.png' alt='White Letter 'z' Centered Inside Black Circle clip art'/></a>

<!-- Size: 340 px -- >
<a href="http://www.clker.com/clipart-148161"><img src='http://www.clker.com/cliparts/0/1/R/k/V/d/white-letter-z-centered-inside-black-circle-md.png' alt='White Letter 'z' Centered Inside Black Circle clip art'/></a>

<!-- Size: 640 px -- >
<a href="http://www.clker.com/clipart-148161"><img src='http://www.clker.com/cliparts/0/1/R/k/V/d/white-letter-z-centered-inside-black-circle-hi.png' alt='White Letter 'z' Centered Inside Black Circle clip art'/></a>