The most stealthy way to vape has arrived... meet the new Pen Pal Concentrate Vape Pen. The Pen Pal Takes stealth to the next level with a fully usable writing pen designed to conceal a vape pen inside. Designed with a simple 510 thread and USB for easy charging without any sign of having a charging port. Clip style vape tank looks like a pen clip but is actually a fully reusable vape pen cartridge. This is the future of vaping... simply remove the pen cap and either write on paper or draw from the top to vape your concentrates.