The Mason Bottle plastic ring and cap is compatible with any regular-mouth mason jar. It's designed to fit perfectly with Mason Bottle products too!
Specifications:
- Rust-proof plastic ring (will fit any regular-mouth mason jar)
- 2-way cap: attach to hinge or keep it removed
- 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
