Mason Bottle plastic rings are compatible with any regular-mouth mason jar. While our products are compatible with the metal rings that come with mason jars, we started making a more durable plastic version at the request of parents using our baby bottles, but they are also great for short-term food storage (not canning!)
Specifications:
- Rust-proof plastic ring (will fit any regular-mouth mason jar)
- Easy to clean
- Non-Toxic
- Free from BPA, PVC, BPS, phthalates
- Made in the USA by Mason Bottle
**All plastic components are recyclable and BPA-Free
