Aspire Atlantis Evo Replacement coils are Kanthal Clapton coils with resistance 0.4ohm and 0.5ohm. Having coil options enables the EVO to achieve your preferred taste requirements when using a wide array of E-liquid flavors. 0.4? coils have larger airflow for greater vapor production and balanced flavor. 0.5? coils produce a more dense vapor highlighting the flavor differently. Switch between EVO coils as required to ensure you are maximizing your vaping experience. 5pcs each pack.