The Athos by Aspire features a sub ohm tank system designed for heavy hitting draws and dense clouds. A Pyrex glass tube is protected by a stainless steel shell with a large tank viewing window, combining rugged protection and seamless internal tank visibility. Equipped with a smooth airflow control ring at the bottom of the unit, the Athos can be controlled to suit any vapers airflow preferences from tight to wide open. The Athos can be easily filled through the top by screwing the top cap off of the unit, providing full access to the large 4.0mL tank. Pre-installed right out of the box, the Athos comes with a 0.16O Penta-coil to get you chuckin' clouds as soon as this puppy is filled up. A clear and comfortable conical shaped drip tip is installed on the unit. The up to date in the sub ohm platform, the Athos by Aspire raises the bar by introducing top notch design and premium quality control.