Grav Labs was founded in 2004 in Austin, Texas. Starting with the Gravitron gravity bong, they have since been an industry trailblazer; offering innovative, high-quality, functional, and durable glass hand pipes, water pipes, bongs, bubblers, customizable pipes, and accessories. Grav has introduced innovative product lines such as Helix, Upline, Stax Kits (customizable bongs), Nano, and an assortment of tasters. At Kannakart, we bring you an extensive selection of Grav glass bongs, hand pipes, bubblers, dab rigs, and accessories. Like Grav, we are committed to providing you with the most beautiful, functional, durable, and affordable glass pipes, bongs, bubblers, and one hitters to outfit your next smoke sesh.