Feature: 1. Size: Replacement mason jar lid with outer diameter of 72/88mm(2.8/3.5in), inner diameter of 70/86mm(2.7/3.4in), suitable for 2.7in and 3.4in jars. 2. Good Sealing Performance: Silicone jar gaskets with special design and the ductility of silicone can keep jars in waterproof and airtight. No leak and reliable. 3. High-quality Material: Durable storage caps made from high-quality PP, which is high and low temperature resistant, easy to wash and not rust. 4. Tightly Fit and Reusable: Replacement jar gaskets is reusable. After tightening the outer ring, the screw bottle cap makes the entire surface evenly stressed and fits tightly, 5. Easy to Use and Open: Split jar cap design, lightweight and easy to use. Anti-slip strip design make it easy to open and close. Specification: Features: Size: Replacement mason jar lid with outer diameter of 72/88mm(2.8/3.5in), inner diameter of 70/86mm(2.7/3.4in), suitable for 2.7in and 3.4in jars. Good Sealing Performance: Silicone jar gaskets with special design and the ductility of silicone can keep jars in waterproof and airtight. No leak and reliable. High-quality Material: Durable storage caps made from high-quality PP, which is high and low temperature resistant, easy to wash and not rust. Tightly Fit and Reusable: Replacement jar gaskets is reusable. After tightening the outer ring, the screw bottle cap makes the entire surface evenly stressed and fits tightly, Easy to Use and Open: Split jar cap design, lightweight and easy to use. Anti-slip strip design make it easy to open and close. Specification: Color: Black / White / Pink / Red (optional) Size: 70mm/2.7in , 86mm/3.4in (optional) Main Material: PP Outer diameter: 72mm/2.8in , 88mm/3.5in Inner diameter: 70mm/2.7in , 86mm/3.4in Packing List: 1 * Lid Package List: 1 * Lid