• Size: approx. 6.50 x 6.50 x 1.00 cm. • Sealing ring inside the lid for an airtight and leak-proof closure, ensuring a perfect seal. • Suitable for sealing mason jars that store candies, cookies, fruits, jams, tea or coffee, nails, and other small objects. • The sealed lid helps keep food fresh, without worrying about leaks that may contaminate. • Thread on the neck of the mason jar to increase friction strength and facilitate opening.