Blender Bottle 2-Pack Shaker Cup with Stainless Steel Wire Whisk Blenderball, Purple, 28-Ounce and 20-Ounce Great for Protein Shakes, Nutrition Drinks, Salad Dressings, Pancake Batter, Yogurt Smoothies, Lump-Free Gravy, Fiber Drinks, French Toast Batter, Scrambled Eggs, Sauces and Marinades, Pudding, Omelets & Egg Dishes, Water Bottle, Dry Ingredients (cinnamon or colored sugar, etc.), Food Storage (nuts, syrup, etc.) BlenderBall whisk inside, Easy to clean-dishwasher safe, Secure screw-on lid, 28-ounce capacity, Wide mouth makes it easy to add ingredients, Fits in most car drink holders, BPA-free, Large drink/pour spout, Embossed ounce and millitier markings Wide mouth makes it easy to add ingredients Secure screw-on lid Blender Ball is made of 316 surgical-grade stainless steel