Premium BGKD Rust-Proof modified LC jars lids. Made of super tough 320 Stainless Steel, these long lasting lids and rings are comprised with the highest anti-corrossion properties on the market. All other lids including Ball brand have a cheaper "tin plate" coating which will corrode in short time and eventually have ring warping, preventing proper sealing. Modified with compression fit 0.22um PTFE syringe filter and a self healing injection port. These lids fit all canning jar types. Choose Wide Mouth or Regular size. FAST SHIPPING usually within 24 hours.