The newest concentrate atomizer from Crossing x Divine Tribe, the V4 Quartz Crucible uses a rebuildable ceramic donut heating element to provide perfectly dialed in temperatures to the Quartz Crucible bucket for great flavor with every hit.  Cleaning and Maintenance Instructions from Manufacturer Qtip after each session Always oil o-rings  loosen heater wire post screws Lift heater and cup from posts  GENTLY remove pin under ceramic spacer, Do not use force Torch clean quartz cup and ceramic spacer Do not torch clean donut heater or metal base Be sure to place pin in first before tightening down heater coil wires.   FeaturesRebuildable Quartz Crucible Cup AtomizerTop Airflow With Vortex Directional DesignEasy Cleaning and MaintenanceTemp Control in NI mode, recommended settings 30-35W at 400-450F   Specifications510 Threaded Atomizer14mm Drip Tip Included In The Box:Complete V4 with 13mm donut installed 1 extra replacement 13mm donut and spacer4 extra screws2 extra Cotter Pins1 extra Quartz Crucible CupDab tool and Screwdriver