Lonsdale vintage shaker this drinks shaker bottle is ideal for mixing up your protein shakes energy drinks and more whilst this design comes with a metal ball similar to a whisk which is designed to shake about better and provide a smoother shake or drink the drinks shaker also comes with a fluid measurer to the side in ml and fl oz so you can mix your drink accurately lonsdale drinks shaker contains a metal ball with a whisk design for shaking flip open top for drinking out of