[DETAIL] 71166 Tools Feature -Multiple Purposes: Great for making tasty, healthy kimchi, ginger carrots, Hot Sauce, sauerkraut, pickles and other fermented foods with ease and safety. (Package includes 1*lid+1*airlock, many colors are available) -between the lid and the jar, preventing oxygen and dust from contaminating your ferments. -Fit and Practical: The inner size of the lid is about 86mm/3.39in (about). And it fits any brand of "Wide Mouth" Mason jar in pint, quart, or half-gallon. -Sturdy and Convenient: Use the sturdy lid to improve organization in your kitchen. Makes an excellent gift for the fermentation. -Great for Fermentation: The lid can well speed the process of fermentation for you. Specifications: Name: Mason Jar Lid with Airlock Material: plastic Size(about): the inner size of the cover is 86mm/3.39in，70mm/2.75in Packing List: 1*Mason Jar Lid with Airlock* (not includes the jar) Note: Please note that the physical no picture so bright, depending on your monitor, the color is inevitable, mind bypass. Cloth occasional small flaw: jumpers, were missing, thread inevitable. Minor flaw does not affect the big effect [ATTRIBUTES] - Hign-concerned Chemical: None - Material: Rubber - Origin: Mainland China - Hign-concerned Chemical: None - Material: Rubber - Origin: Mainland China