MAGE RTA Features and Specifications -Diameter: 24mm -Overall Height: 44mm -3.5ml Large Tank Capacity -Convenient Top Fill System -Solid 304 Stainless Steel Construction -Food Grade Pyrex Glass -8mm Vertical Four-Post Design -2mm Terminal Post Holes -Three (1mm x 9mm) Ajdustable Airflow Slots -Four (2.5mm) Wicking Ports -Dual 4mm Airflow Chimneys -Gold Plated 510 Contact Pin -Black 510 Compatible Sloped Delrin Drip Tip -4 Sets of Colored O-rings for Customization MAGE RTA Comes With 1 x MAGE RTA by CoilArt 1 x Pyrex Glass Replacement 3 x Extra Sets of Colors of O-Rings 1 x Extra Set of Contact Screws