Tough Band Rust-Proof Screw Bands

4 Rust-Proof & Reusable Mason Jar Bands; Works with Any Mason Jar Disc Lid Available in 2 Sizes Designed for Wide Mouth or Regular Mouth Canning Jars (Ball, Kerr, Bernardin, etc.)  Perfect for Storing Food, Liquids and Fermenting Creates a Leak-Proof and Airtight Seal Made from Durable Food-Safe and BPA-Free Materials Dishwasher Safe and Reusable; Not Intended for Heat Processing  Replace flimsy and rust-prone screw bands with Tough Bands. Made of durable and food-safe plastic, Tough Bands won't rust and can be washed in the dishwasher. They're compatible with regular disc lids and create a secure seal. The unique faceted design is easy to screw on and off, making it perfect for food storage and fermenting.