Building off of the tried-and-true design of the BlenderBottle Classic, the Pro32 adds customer-requested features and refinements to deliver a shaker that’s a cut above the rest. Featuring odor-resistant Eastman Tritan plastic, a rounded base, and the new SpoutGuard for keeping dirty gym fingers at bay, the BlenderBottle Pro32 joins the Pro Series with style. New Pro-Series lid with a patent-pending carrying loop. Ergonomic flip cap and spout. BlenderBall whisk inside. Stain and odor resistant. Leak proof guarantee. Made from high-grade material. Spout guard for sanitary purposes. Fits in most car drink holders. Dishwasher Safe. Why the Whisk Ball? Unlike stationary mesh grates or other in-lid elements, the BlenderBall whips around inside the bottle as you shake. The BlenderBall is springy and bounces off both the top and the bottom of the bottle, working against the liquids. Made from electropolished 316 grade stainless steel, the same material used in surgical instruments and implants. Add ingredients like peanut butter, applesauce or yogurt to your protein or meal-replacement shakes for added flavor - the BlenderBall whips them in with ease. The BlenderBall will never rust, chip or peel. Every BlenderBall is manufactured using a unique multistage process designed to ensure safety, quality, and longevity.