Ovulation timing check panty liners, pack of 5. - Brand: Sofy - Contents: Pack of 5 - Features: Panty liners that check ovulation timing - How to use: Check ovulation timing with the indicator sign - Precautions: Time intercourse between the 0th and 2nd day of menstruation when there are two lines. New, unused, and unopened, but the box will be opened and flattened for shipping purposes and included.