Ezyaid Pregnancy Wheel, Due Date Calculator for OB-GYN, Birth Date Finder Wheel Designed for Midwives, Nurses, Patients, and Doctors

Approved Accuracy: Simple and clean charting indicates first date of last period, probable ovulation, probable implantation, 1st trimester, 2nd trimester, 3rd trimester, and expected date of confinement Easy to Use: Made of handy 13cm diameter big wheel with rotatable small wheels, just simply rotate the wheel by dragging and move the pointer to select LMP Classic Design: Small handy wheels with printed days, weeks and months for calculating lead times, to efficiently predict the approximate date of delivery Great Value: Made of durable and lightweight PVC material, designed by medical professionals and tested by thousands of actual users Ideal Prediction Aid: Tested and approved calculator wheel designed for midwives, nurses OB-GYN doctors and medical student, and also as best gifts for health care facilitators