Stainless Steel Jar Bands - 2-Pack - Durable and Rust-free Canning Rings - By EcoJarz (Regular Mouth (AKA Small Mouth)) Made with thick 304 Stainless Steel for Rust resistance and durability Fits all Regular Mouth (AKA Small Mouth) mason jars Great for canning, fermenting, or anywhere corrosion resistance is needed Durable and built for a lifetime of use 2 Pack