Material:Quality silicone rubber material, no smell, non toxic, safe to preserve food and durable to use.
Airtight & Leak-proof:Easy to install on your jar lid, help to seal the glass canister and provide your food an airtight and liquid-tight environment, better preserved your canned foods.
Washable & Reusable:Waterproof silicone rings, can be easily washed clean and reusable, good to store your fruits, vegetables, nuts, self-made food, preserved food, etc.
Universal Gaskets:Compatible with most ordinary cans or jars lids like Mason jars of this size, seal up tight, perfect fit and work well.
