Grav Studios is a facility located in Austin, Texas designed for glassblowers by glassblowers with over 45 years of collective experience. Grav Labs has harnessed a solid reputation for creating quality scientific glass. DankCartel is an official retailer for Grav Labs. Here you'll find an excellent selection of bubblers, recyclers, hand pipes, water pipes, dab rigs, and other glass pipes. Grav Labs is known for their quality scientific glass pipes, as well as innovative designs like the Helix collection, STAX, Arcline and more.