Vector brushes create by Chopper Designs. Made them all from circles and they were made in Photoshop CS3 so i'm not sure if it'll be compatible with other photoshop versions so use at your own risk.
They are pretty large and use anyway you want no restrictions.
GET MORE BRUSHES AND WALLPAPERS AT FREE nuBREEDlab Resources
Please link to this whenever use to help spread around.
P.S: I'm sure everyone on here knows how and where to install this but if you do not, go to your photoshop cs3 folder > presets > brushes, then paste the brush here.
Hope you like it. Please Comment.