One-handed open/close lever design makes it easy to flip back to pour and forward to close. The capacity of salad dressing container is 7oz/200ml. Milliliter and ounce markings are printed on the sides for easy measurement. The salad dressing mixer bottle is made of PP material, and free. Dishwasher safe. Package includes 4 pack salad dressing shakers. Color: black, white, green. Great for making, mixing, serving and storing dressings, sauces and marinades. The shaker allows to concoct dressings and sauces in a flash, and store or pour with no spills. Tip: Make sure the lid is closed and flip the top lever forward to prevent leakage during shaking.