Vape pens are a good way to have marijuana concentrates while you are on the road or walking around, but vaporizer pens have a small battery with a coil that gets warm. Vaporizer pens use a cartridge that has marijuana oil, and these oils can be sativas, hybrids, or indicas. They can be resin, rosin, or even hash oil, then as the marijuana oil heats up, it turns into a vapor that can be inhaled. This vapor is often around 70% THC or higher, but i have purchased some marijuana distillate pens that are 90% thc, one of the best strains for me is an indica called grandaddy purp as well as I constantly find it around 90% or higher. Vaporizer pens are unquestionably discreet as well as that is one thing that I certainly prefer. I like to have marijuana even when I am out as well as about. I am constantly a unquestionably nervous as well as nervous person, however marijuana makes me feel like I am more calm as well as relaxed. I keep the vaporizer pen with me at all times, as well as including when I am at work! Sometimes I sneak into the washroom as well as have a little bit of marijuana, and no one in the office knows that I smoke at all as well as I do not go outside for cigarette breaks, however when I do go to the washroom, I am smoking marijuana as well as no one knows. I like having a secret that no one in the office knows about as well as as long as I am discreet as well as do not get caught, no one will ever know that I am high all afternoon at the office.