Want to purchase a Flyte/Keyy/Bob Pen and set yourself up for the foreseeable future? Our Flyte/Keyy/Bob Pen Starter Kit is just what you need! Each Starter Kit includes one battery, and one charger, as well as TWO cartridges of your choice! Bob cartridges contain .6g of distillate in a .5ml cartridge? Each cartridge contains roughly 72% THC NOTICE: These vape pens do NOT contain Vitamin E Acetate. ATTENTION: Prime your cartridge! Take 5 long pulls without the battery. This will avoid any burnt or distorted taste.? The vape pen should be turned off when not in use, to prevent the button from being pressed accidentally. Bob does not have a button to turn off. WARNING: We have successfully developed a proprietary technique to distill cannabis oil that removes ALL impurities and co-developed a pen vaporizer design that quickly vaporizes the thickest and most purified oil. This is not a pen for puffing. It?s a pen for the long haul.