This cap reflects not only high quality and aesthetic, but functionality for the cloud chaser. Offers the same properties than the regular glass caps but with an even more generous airflow and much easier draw for the ultimate cloud experience. maintaining very good flavor all the time. Featuring a 10-12mm bore on top and two 8-10mm wide airflow slots. (kennedy competition glass cap doesn’t have air flow) sizes based on originals attys. Sizes are different from each other.