The BlenderBottle is the best way to keep your smoothie smooth on-the-go! A stainless steel wire whisk moves freely inside the bottle as you shake, mixing even the thickest ingredients with ease. The BlenderBottle also has a convenient carrying loop and flip cap design. The leak-proof seal, premium materials, and unparalleled mixing further reinforce the classic’s position as the world’s best-selling shaker cup. Features include a secure screw-on lid, wide mouth for easy mixing and embossed markings that measure both ounces and milliliters. The BlenderBottle is dishwasher safe, BPA- and phthalate-free, and comes in three different sizes. Perfect for protein shakes, smoothies, pancake batter, scrambled eggs, fiber drinks, dressings and meal replacements.