Each Eyebrow Cake Powder kit includes a slanted brush and a round wand to shape, style and tame eyebrows. EYEBROW CAKE POWDER. SHADE: #ECP01 BLACK GREY. FULL SIZE 6.5cm x 4.8cm. NYX COMMENTS. Our recipe for cooking up exquisite eyebrows includes wax, tools and a pair of complementary powders, which can be customized to create the ideal shade.