Black Stainless steel shaker cup for your protein or greens powder mixes. Quickly and easily make your favorite protein shakes and take them on the go. By Truvani. Secure seal lid Click means closed cap Wire wisk ball and stirring screen Embossed measurements (inside and out) BPA FREE lid Holds 500ml/16.9 oz Comes in black or pink, have about 5 in black and 1 in pink. See other listing for pink ones. All brand new in box.