Prepare and enjoy protein shakes, smoothies, and other beverages on the go with this Plastic Shaker Bottle with Mixer! Made of AS plastic, this 24 oz. item features a side marker in ounces and milliliters, a weighted mixing ball, screw cap lid and carry handle. Its portable design and effective mixing mechanism make it a popular choice among fitness enthusiasts, athletes, and individuals leading an active lifestyle. This product is BPA free and should not be microwaved. Hand wash only.