The G-Stone is a completely inert ceramic sponge that allows you to use your Genius Pipe for smoking your favorite concentrates. The G-Stone doesn't emit any smoke or vapor itself and your concentrate absorbs easily into the stone. When the temperature is hot enough, the concentrate vaporizes within the stone to deliver an undiluted tasty hit. 

The G-Stone allows you to enjoy the pure full flavors of your favorite concentrates without the need for a rig, water, or torch, making it absolutely genius! The G-Stone is sold as a 1-pack or a 3-pack.