Comes with detachable dip tray. 

Pour the solution into the dip tray until half full. This provides the right amount of product to ensure that the brush isn’t over saturated. Dip the tip of the brush into the solution. Swirl the brush for approximately five seconds. Residue is removed from the brush and the solution changes colour. Remove the brush from the solution and squeeze the bristles with a clean paper towel until they are dry to the touch.