We’ve grown pretty fond of GRAV’s scientific 18-inchers; now we’re happy to add their simply genius glass to our collection of portables. The Austin based glass masters are best known for their signature style: minimalist with a scientific kick. This Mini Spoon Pipe’s secret scientific detail is the ash catching (and added cooling!) of the unique “donut” silhouette. The 3-inch design also slides easily on a string or keychain for an awesome pendant pipe. Its ultra-portable design is ready for a day in the park, your favorite music fest, and every herbal occasion in between!