Set of six 10.5 oz milk bottles with reusable BPA free plastic straw Sand metal screw-on lids. Serve your favorite cold drinks, shakes, smoothies in this milk bottles. Perfect for breakfasts, BBQ' s, garden parties, weddings, picnics, beach trips and more!. makes a great gift idea. Milk bottles are dishwasher safe. Hand wash recommended for straws and lids.