The Water Bottle That Mixes BlenderBottle Products Have Always Been BPA Free Add Ingredients, Shake It Up, Enjoy! Patented Stainless Steel BlenderBall Inside (316 Surgical-Grade Stainless Steel) BlenderBall Mixes As You Shake! Phthalate Free Eastman Tritan Order and Impact Resistant Stay Open Flip Cap 28 oz Total Capacity Leak Proof Design Oz and ml Markings Top Rack Dishwasher SafeNo Ordinary BottleIntroducing the BlenderBottle SportMixer, the hardest working bottle in the business. The SportMixer is a high quality sports bottle and portable mixer. all in one. We"ve fused form and function to create a bottle that"s as active and unique as you are. Simply add your favorite ingredients, drop in the BlenderBall wire whisk and shake. The BlenderBall moves freely through the bottle as you shake, mixing the thickest ingredients with ease and is designed to remain in the cup until you"ve enjoyed the contents.Now you can have smooth, great tasting drinks anytime, anywhere.Perfect For: Protein Powders Energy Drinks Nutritional Supplements Flavored Drink Mixes Meal replacements Smoothies and Shakes Electrolyte Supplements Fiber Powders WaterDid You Know?The BlenderBall is surprisingly effective. Try adding these and other ingredients for a flavorful experience: Ground Oatmeal Peanut Butter Yogurt Applesauce Cocoa Powder Fruit Juice Cinnamon