A waterbottle and mixer in one. A stainless steel surgical grade mixer ball floats freely inside the bottle to mix up your favorite sports drink, protein shake, or just plain good water. The bottle is BPA and phthalate-free and won't absorb flavors or odors. Sleek black styling and leak-proof colored flip cap, looks great wherever you go. Whether you are athlete, spectator, or someone on the go and needs something quick but healthy, this mixer is the perfect choice. 28 oz. capacity and top rack dishwasher safe.