Masontops Tough Band Canning Rings - 4 pk

These durable and food-safe plastic rings replace flimsy and rust-prone screw bands. Compatible with regular disc lids to create a secure, leak-proof and airtight seal, these are easy to screw on and off, making it perfect for storing food, liquids and fermenting. Dishwasher safe and reusable, however, not intended for heat processing.