Leakproof Design: Each bottle has a stainless steel lid with a rubber O-ring to prevent leaks and spills. Dishwasher Safe: The glass bottles are safe to wash in the dishwasher for easy cleaning. Multipurpose Use: Great for storing and transporting beverages, juices, smoothies, and sauces. Portable Size: Each bottle holds 24 ounces, perfect for on-the-go use. BPA Free: The bottles are made from BPA free glass material for health and safety.