✅ 【Universal Application】Each jar seals replacement has an inner diameter of 6.8 cm and an outer diameter of 9.6 cm, a standard size that suitable for almost all ordinary wide mouth jars. ✅ 【High Quality】These jar gaskets replacement are made of food grade silicone, sturdy, soft, and elastic for slight stretching. Please rest assured to use in the refrigerator without worrying about deformation or breakage. ✅ 【Airtight Sealing】These sturdy rubber seals for gasket jars can completely seal the jar, providing good airtightness and sealing, preserving food freshness and odorlessness. ✅ 【Easy to Use】Simply stretch the mason jar gasket slightly to expand it to better wrap and secure it inside the can lid, which will effectively avoid air from entering and keep the food fresh. ✅ 【Wide Application】Our airtight seals rings are suitable for most conventional sized glass jars, food storage jars, glass sealed jars, Mason jars, etc. Please rest assured to purchase.