The updated BlenderBottle classic bottle adds a new, convenient carrying loop and flip cap design to the tried-and-true original BlenderBottle. The patented BlenderBall wire whisk moves freely inside the bottle as you shake, mixing even the thickest ingredients with ease. The leak-proof seal, premium materials, and unparalleled mixing - coupled with the new additions - further reinforce the classic"s position as the world"s best-selling shaker cup. Features secure screw-on lid, wide mouth for easy mixing and embossed markings that measure both ounces and milliliters. The BlenderBottle classic 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.