After Shock Micro Stem V3 Features: After Shock Micro Stem High Performance Multi-Purpose DynaVap Tip Stem Interchangeable Body With Option To Use With Or Without Air Port Removable “Low Turbulence” Micro Condenser (3mm inner diameter) Textured Body For Easy Rotation Of The Micro Stem 2 in 1 Jet Lag 510 Tip/Stem For Traditional “Dry” Method Built In Heat Dissipating Fins Combination of Heat Fins, Material and Mass to Keep The Stem Cool to The Touch During Heavy Use