HIGH QUALITY MATERIAL & SAFE AND DURABLE: Wide mouth mason jar lid is made of durable, BPA free safety material and equipped with a silicone gasket. Mason jar pour spout lids are easy to clean, dishwashable, and reusable. Nur maon jar lid (Mason Jars Not Included) THICKENED HANDLE & EASY POUR SPOUT: The thickened handle is made of high-quality thick material, which can support the weight of a mason jar (16-64 oz), does not bend at all, and is easy to hold and use. The flip cap lid stays open, and whether you're using it for a smoothie, coffee, or salad dressing, you'll get a smooth pour from the spout without interfering with the flow of water. AIRTIGHT DESIGN:A safety seal is inside mouth mason jar lid to prevent leaks. Simply screw on the lid of the mason jar and firmly press the flip cap for leak-proof. The airtight seal keeps your food fresh, so you can stock up on smoothies, juices, and salad dressings and enjoy them at your leisure. EASY TO CLEAN & REUSABLE: Mason jar covers are used with wide mouth mason jars instead of plastic water bottles and disposable containers. The wide mouth mason jar lids are dishwasher safe and reusable, environmentally friendly and energy efficient. ONLY FITS FOR-BALL-MASON JARS WIDE MOUTH: Only suitable for-BALL mason jars wide mouth(86mm), not compatible with mason jars with filter, regular or narrow mouth jars, please check the size and brand of your jars before purchasing Your satisfaction is very important to us, if you have any questions, please contact us, we provide 24h service