The High Energy Labs Blender Bottle is the highest quality shaker on the market! It also makes a great reusable water bottle too. It is perfect for mixing everything from creamy smooth nutrition shakes to salad dressings, marinades, and fluffy omelets. Simply drop the BlenderBall wire whisk into the BlenderBottle along with your ingredients, screw on the lip, press down the flip top, and shake. The patented BlenderBall moves freely throughout the bottle as you shake, mixing the thickest ingredients with ease-it’s made electropolished surgical-grade stainless steel and is designed to remain in the cup until you’ve enjoyed the contents. Dishwasher safe.