These airtight glass jars for weed are available with an optional Pop-Vac lid design, which creates an audible “pop” when opened to confirm a secure vacuum seal. Combined with triangular, square, and hexagon jar shapes, the Pop-Vac lid enhances freshness retention, odor control, and moisture protection while adding a premium, consumer-friendly experience. This design is ideal for brands that want both reliable airtight performance and clear tamper-confidence at first open.