... is unique:Blender Ball mixer inside Secure screw-on lidWide mouth makes it easy to add ingredientsLarge drink/pour spoutStayOpen flip cap ... a variety of colorsFits in most car drink holdersBlenderBallSpring thingy, wire ball, whisker ball, mixer thing, scrambler, little whipper, and the magic ... / 6.7kgs High quality bpa free 400ml Plastic Protein Sports Drink Shaker Gym Mixer Blender Water Bottle Ball