Angle's Sky 2 Pcs Stainless Blender Mixing Ball Whisk Material: Stainless Steel Ball size: Approx 5.5 x 5.5 cm/2.2 x 2.2 inch Package include: 2 Pcs Blender Mixing Ball Makes your drink uniformly and taste more good Use it with shaker bottle/cup, makes your nutrition dissolve more fully and quicky