The SMOK RPM40 Replacement Coilsare designed for the SMOK RPM40 Kit! No imitations here! 100% Authentic! Each of the 4 different coil options offer something unlike another brand. Such as RPM Mesh Coil / RPM Triple Coil / RPM Quartz Coil / RPM SC Coil. Each coil offers something special to the vapers E-Liquid and lets you understand the true difference of each coiling material in the vaper scene. With this wide range of options there is surely a coil for you! The SMOK RPM40 Coils are a statement to the vaper scene, expelling old habits and bringing a new process to the front line that attracts new and bright ideas. Experience what everyone on the planet is talking about and try SMOK RPM40 coils for your self.