Description This is a Mason Jar Lid, which are manufactured with good materials, durable and safe enough to use. Equipped with a creative design, which can prevent your jars from warping and form an airtight seal, sturdy, durable and leak-proof, helping your jars stay fresh. High grade materials and fine workmanship, durable. Features -Color:Grey -Material:Silicone -Size:8.80X8.80X1.80cm/3.46X3.46X0.71in -Good leak-proof and sealing effect, helps to seal your food and prevent leakage. -Taken from premium and supple silicone material, these lids are light, and not easily deformed. -This mason jar lid is great for coffee mason jar. Please clean and keep dry every time after using. -Good leak-proof and sealing effect helps seal your food, prevent leakage, and keep your food fresh and clean for a long time. -The Mason Jar Lids can be used for a long time and will prevent your beverage from dirty items. Good leak-proof and sealing effect, helps to seal your food and prevent leakage. Taken from premium and supple silicone material, these lids are light, and not easily deformed. This mason jar lid is great for coffee mason jar. Please clean and keep dry every time after using. Good leak-proof and sealing effect helps seal your food, prevent leakage, and keep your food fresh and clean for a long time. The Mason Jar Lids can be used for a long time and will prevent your beverage from dirty items.