Merchandise Deal

“Mayhem Festival Gunmetal G Pen” Now Available Online

We’re four shows into Rockstar Energy Drink Mayhem Festival and due to the high demand from all you Mayhem fiends who couldn’t make the fest, Grenco Science are bringing the limited-edition “Mayhem Festival Gunmetal G Pen™”directly to you.

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The exquisite gunmetal vaporizer features a G Glass Tank™ and fits perfectly into the pocket size, Rockstar Energy Drink Mayhem Festival branded travel case. Grab your “Mayhem Festival Gunmetal G Pen” now for only $69.95 atGrencoScience.com while supplies last! Visit the G Pen tent at every Mayhem Festival date for highly discounted prices.Click here for more information.