These Mason Jar lids are the ultimate tight and fully protective covers. They come with silicon seal making sure your Mason Jar is tightly sealed. Designed for wide mouth mason jars, they are leak free and air tight. With a great sleek silver color they are perfect for that modern look that you want in your pantry. Incredibly durable giving you that ability to keep reusing them without having to forgo any of the high quality.Giving you an ample amount for all your storage needs. The mason jar pour top and the silicone gel is safe materials available and BPA Free, non-toxic and no special odor, feel free to use. Good guarantee: We believe in our products, if you have any questions about the products, please contact us!