Glassjar herb holder

thingiverse

This cover protects glass jars that measure approximately 96 mm in diameter, the standard size for most herbal products sold in stores. Its design ensures safe use with herbs, as it's made from glass, preventing any chemical reactions that could harm the plants. Additionally, the cover is waterproof, eliminating the need to worry about creating a seal or applying multiple layers. However, if the walls are too thin, light may still penetrate, making painting a viable option to improve coverage.