The IQOS 2.4 PLUS Duo Folio is a compact folio finished in a fabric that allows you to keep your IQOS and a second holder together with easy access. This folio comes with a magnetic closing flap, side window to check battery level, and easy access to micro USB port. IQOS Duo Folio is ideal if you want to be able to carry and protect your IQOS 2.4 PLUS device and extra holder.