The cannabis market has evolved and has introduced new and safer methods of ingesting cannabis. With the introduction of vaporizers and vape pens into the market, joint rolling is quickly becoming a thing of the past. Most vape pen kits typically include concentrate cartridges which often times include pre-filled THC oil which connects to the pen, a pen-like battery and charger. All you have to do is connect two pieces and you're good to go. Switching to a vape pen also means you won't have to handle weed anymore.