Package Content: You will receive 10 pieces silicone jar gaskets in total, sufficient quantity for your daily use and replacement. High Material: These replacement jar seals are made of premium silicone, soft and durable, safe to use in a freezer, not easy to deform or break, convenient to replace and keep your food clean inside the canning. Airtight Replacement: These sealing rings can replace your broken or old ones of your glass jars, and help create an airtight and leakproof seal on canning jars, to preserve your food well with no taint of odor. Universal: Every jar gasket replacement measures 9.4cm/3.7 in outer diameter, 6.8cm/2.7 in inner diameter and 0.22cm/0.09 in thickness, fit for Mason jars and most regular or wide mouth cans or jars. Note: the jar seals are soft enough to stretch a little to fit the canning. Versatile: Our silicone canning jar seal rings can be applied to store your fruit and vegetables, self-made food, toiletries, paint, hand-made products and more, perfect for fridge and freezer storage, pantry storage, food transporting, etc.