The BlenderBottle Pro28 Shaker Bottle (28oz) is a high-quality, durable shaker designed for easy mixing of protein shakes, smoothies, and other beverages. Featuring a 28-ounce capacity, it comes with a leak-proof lid, a convenient carrying loop, and a BlenderBall wire whisk to ensure smooth, clump-free mixing. Perfect for on-the-go use, the Pro28 makes it easy to mix and enjoy your favorite drinks anytime, anywhere.