This is the replacement Pyrex glass tube for the Vape Pen 22 by Smok Tech - The popular sub-ohm device with a simplistic design, 22mm in diameter equiped with a 1650 mAh battery capacity.
The Vape Pen 22 is innovative in design with the old-style chimney inside the tank which has been replaced with the whole middle compartment of the tank as just one large coil; the top mouth peice and bottom airflow both attached directly to the top and base of the coil. This provides much more convenience when it comes to cleaning and maintenance as it is can be fully detached and reassembled.