Calexotics Digital Ad


Dedicated to advancing the cannabis experience through technology and design, Grenco Science, makers of G Pen, joined forces with B Real, the iconic Cypress Hill rapper, entrepreneur and founder of Dr. Greenthumb’s, to introduce the Dr. Greenthumb’s x G Pen Roam.  

The all-in-one portable vaporizer for concentrates, the G Pen Roam is redesigned with B Real’s signature green and gold for discerning consumers. As you’d expect, the device pairs perfectly with Dr Greenthumbs concentrates, delivering the best flavor experience possible. 

The G Pen Roam features a full quartz tank and customizable temperature settings from 400° – 800°+F for a controlled experience. Engineered for ultimate ease of use and portability, the fully portable electronic dab rig features a spill-proof, self-contained borosilicate glass hydrotube; removable silicone mouthpiece that is enclosed in a durable aluminum housing; and is magnetically connected to the powerful, rechargeable 1300MAH lithium-ion battery. 

“We make a wide range of products at Dr. Greenthumb’s and always want to stock the shelves with the latest innovation,” states B Real. “The new technology we have developed with Grenco Science enables us to provide a customizable experience for consumers to enjoy our concentrates at a superior level.” 

 Visit or call (800) 948-7480 fro more info. 



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