Made out of high grade, food grade glass making it both durable and high heat resistant. This explosion proof glass, has a 6mL capacity and ergonomically made to fit comfortably with your device. Enjoy continuous, robust great tasting vapor clouds with the help of the TFV12 Cloud Beast King Pyrex Glass by SMOK. At a really great price, this is a replacement piece that you will not want to miss out on. Make sure to get one today!