The Standard Functions Rhyno Pro Series RDA is a stainless steel competition RDA perfect for chasing clouds and winning competitions. The atty features 24K gold plated posts for maximum conductivity, and large 4-post 2mm holes ideal for low gauge wires and parallel builds. The RDA also features a dual cyclops-style adjustable airflow. You have a option of using a slammed 510 drip tip cap or a extended delrin “Chuff Style” drip top to help alleviate heat on the lips. Combine this package with a tarnish proof, 24K gold plated 510 pin for optimum conductivity. Comes in a nice white keep safe box.