You used hash, but how suitable would it be for marihuana? 🙂 I’m just worried it won’t be strong enough

worst customer service in the world. sent me a defect that burned my fingers, i sent it back, they tested it and said it was fine, so i sent them the shipping to return it to me….haven’t seen a sign of it since February 2015. NOW they say I never sent it back. I really had to use a different email address to contact them as they agent that lied his face off wouldn’t answer my emails any more. I have given up getting my pen back or any kind of resolution from this company. I have never seen a company bold face lie before.