The rubber O-ring lining and screw cap of this storage jar form an airtight seal, keeping odors locked in and maintaining the freshness of your contents. ONGROK's Aluminum Storage Jars are designed with a screw-off cap and bottom piece for easy cleaning. Perfect for storing baked goods, candies, teas, coffee, and more, these jars keep items securely contained. With a sleek, discreet design, they blend seamlessly into any home or office setting. Each jar has a generous 180ml capacity, holding up to 14 grams while ensuring your contents stay fresh.