The lever to release the dye is very difficult to use. When you do press it down, it shoots out the dye at such a high rate of speed before you can move the can down a row of hair, that you're left with a glob in the original spot. Since the purpose is to cover up grey, you would think that the company would take into account that aged fingers cannot always press down with the degree of force necessary to engage the dye nozzle. I wasted my money.