These tests assist you in your sex-selection attempt ONLY when used along with the book, u0026#34;The Babydust Method: A Guide to Conceiving a Girl or a Boy,u0026#34; by Kathryn Taylor (book sold separately)nThe tests have been designed and manufactured by Wondfo specifically for The Babydust Method, in order to provide easier to read results with a larger test stripnExtra large result and control lines for easier to read results-- almost twice the width of original Wondfo test stripsnPregnancy and ovulation tests are FDA approved and more than 99% accuratenBoth tests have a sensitivity of 25 mIU/ml, allowing for early detectionn