Usage notice: 1. Ovulation measurement date - last menstrual start date + (menstrual cycle days - 17), continuous measurement for 5 days 2. It is recommended to use urine from 10:00 am to 8:00 pm (it is best not to drink water 2 hours before measurement) 3. Early pregnancy test can be measured 10-14 days after the incident; 4. It is recommended to measure morning pregnancy with morning urine (do not drink water for 2 hours before measurement). Description: Material:Paper Quantity:10pcs/box Type:Ovulation Test Strip Package include: 10pcs/box Ovulation Test Strips Notes: Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement.