ATool Mason Jar Lids for canning, Regular mouth lids, Split-Type Lids, Storage Metal Caps, Canning Lids (12pc,Silver)

Key features

• 【What will you get?】12 pack mason jar lids (Rings not included) in one box. Size: 70 mm/2.7 inch, for regular mouth mason jars.
• 【Good Material to seal】The lids are made of tinplate. The tinplate material has good thermal expansion and contraction. When used as a sealing material, the container is vacuum-proof and watertight.
• 【Application】Suitable for pressure canning to store pickles, spices, sweets, biscuits, fruits, jams, drinks, buttons and other small objects.
• 【How to can a jar?】1. Rinse jars, rings and lids with boiling water to sterilize. 2. Soak lids, rings in boiling water for at least 30 seconds. 3. After filling the stuff, put the heated lid on and tighten the rings. 4. Let the jars cool at room temperature.
• CAUTION: The edge of the lid is a little sharp, so be careful not to cut your fingers.2.Not recommended for water baths, because the tinplate is soft and will be deformed if heated for too long.