A large shadow brush with a fluffy shape, the Blending Brush sweeps shadow across lids and blends out color. Built to leave the shadow on your eye (rather than a tight shadow brush that was made to pick up and lay down color), the loose bristles keep your color where it belongs, while creating the blended look you desire.
I love this brush! It's probably the softest I own and the density is just right. While some might complain about the size (it's quite large) I find it perfect for highlighter and blending the line between brow bone color and crease color to seamless perfection. But it can be used for a lot of things, depending on preference and eye shape - I used it to blend into the crease on people with larger lid space or combination normal/deep set eyes, to contour the nose and for fine contouring on theatrical make-up (to make a guy look dead :))