The EHPro Nemesis is a solid and simple mechanical mod. Available in brass and stainless steel, this mod comes with 3 body tubes, allowing the use of 18350, 18500 and 18650 batteries. The Nemesis features silver-plated copper contacts for great conductivity, and a telescoping switch that ensures that any battery/atomizer configuration will fit together tightly and flush. The top cap also allows you to adjust your airflow by simply turning it! If you use an atomizer that gets its airflow from the bottom 510 connection, The Nemesis will allow you to get your preferred airflow. The Nemesis also comes with an additional small ring. Although this device generally won't fire under it's own weight, it features a locking ring (not reverse-threaded) that should be used whenever the device is not being used.