Toptank Mini clearomizer features: - Top filling design - Glass tank - 4ml juice capacity - Stainless steel construction - 510 threading connection - 22mm overall diameter KBOX Mini mod features: - Variable wattage: 7W-75W - Temperature control: 200'F-600'F - Resistance range: 0.1-2ohm - TC coil support Ni / Ti / SS / NiCr / Kanthal coil - Stainless steel construction - 510 threading connection - Spring-loaded center pin - House single 18650 battery (battery sold separately) - Micro-USB charging port