The inner diameter of each mason jar pour spout lid is 3.3 inch(86mm), the mason jar lids are perfect to compatible for all wide mouth mason jars, including Ball and Kerr and other brands.

Not compatible with regular or narrow mouth jars, Check the size of your jar before purchase! The mason jar flip cap lids with sillicone gasket for tight sealing, you can pour, shake, store or carry any liquid or pourable dry goods.

The lid won’t leak even you shake it up, airtight for long-term storage.

With non-skid rib design, mason jar pour spout lids can easily screw on to wide mouth mason jars and it is comfortable to grip and hang on with sturdy handle.

The mason jar drinking lids easily pops open and stays open when pouring or drinking, no flipping back without force.