@qqstg, what desuede said is correct, the sizes of the airflow are 1.2mm, 1.3mm, 1.4mm, and 1.5mm.
desuede wrote:
The sizes are 1.2mm, 1.3mm, 1.4mm and 1.5mm
as specified in the product subtitle on the product page.
@desuede, thank you for helping us to answer the question.