Cork jar lids are versatile and can be used for various jar sizes and types, including candle jars, cosmetic jars, mason jars, spice jars, and storage containers. They come in different diameters to fit standard jar openings, ensuring a secure fit and efficient sealing. Unlike metal lids that may rust or plastic lids that can degrade over time, cork remains durable and functional even in humid environments. This durability ensures that your jar contents stay protected.