Include 20 pack mason jars amd 20pcs silver lids. Each meaures 2.4 * 2 *3.3 inches, holding 4oz capacity. The airtight lids fit the jar perfectly, seals well, leaking-proof and airtight, help you enjoy your daily smoothie that you made. The mason jars are made from high quality glass, BPA free and lead free, keep your foods stay fresh. The mason jars are clear and transparent, artistic flower images are molded in two sides, very elegant. Great for baby food, jam, jelly, honey, spices, seasoning.