The Dressing Whiz is an effortless way to make and serve elegant homemade salad dressings or give your store-bought dressings a better blend. With the push of a button, the aerating propeller quickly and quietly blends your dressing. The Dressing Whiz is great for all types of dressings and marinades and is ideal for simple vinaigrettes that separate easily. The easy-to-fill container features convenient measurement markings, a non-drip pour spout, and an airtight cap for storage. BPA free, 8-ounce capacity. Takes 2 AAA batteries, not included.