Ok, it's a Dior Mascara. Only for being part of Dior family should allowed it to the perfect. But this is not what happens.
It doesn't work properly,it gets too much product on the comb, what will make you clean the eyes area after using it.
It's more like a cool toy because it rotates by itself but you won't miss it for not buying it.
I must confess that I will use the product with a regular comb.