Grenco Science Grateful Dead x G Pen Dash Dry Herb VaporizerGrenco Science is proud to introduce the Grateful Dead x G Pen Dash Vaporizer, the first release with world renowned American rock band and timeless cultural icon, Grateful Dead. The Grateful Dead x G Pen Dash features the bands signature imagery and colorways throughout, highlighted by a bold Stealie on the front of the device and a Good ol Grateful Dead Skeleton dancing across the back. The Grateful Dead x G Pen Dash brings supreme dry herb