SMOK Alike Empty RPM POD is a set of large capacity vaping replacement pods, which is made from the most popular food-grade material PCTG. SMOK Alike Pod Cartridge possesses a side silicone plug fill system and can accept replacement coils from all RPM Coil Series. Including RPM Mesh 0.4 ohm coil, RPM DC 0.8ohm MTL coil, RPM Quartz 1.2ohm coil, RPM SC 1.0ohm coil, RPM MTL Mesh 0.3ohm coil, RPM RBA coil, RPM Triple Coil 0.6ohm. Installed in a bottom plug 'n' play fashion.