The perfect way for making your favorite drinks, Cold-coffee, Milkshakes, Buttermilk, Ice-tea, Mocktails, Protein Shakes, etc. This Shaker is as functional and effective as it’s quality. For creamy lump free nutrition shakes, just drop the wire ball in with you ingredients and shake. The Stainless Steel Blender Ball circulates throughout the contents of the bottle as you shake it, blending the thickest ingredients with ease. Lumpy shakes are a thing of the past with the Blender Bottle.The flip cap is just of the right size to drink or pour out of. Caution: Not recommended for aerated drinks.