20 oz capacity, the blending system uses a 316 surgical grade stainless steel BlenderBall wire agitator. Wide mouth for easy addition of mixing scoops and liquids, embossed markings measure ounces and milliliters; round base for thorough mixing. Screw-on lid creates a leak-proof seal and safety flip keeps mouthpiece clean; wide ring top makes it easy to carry or attach keys . Dishwasher safe, BPA and phthalates free
