Made in USA: Our One Step tests are made in the USA by our California based manufacturer. The One Step test will give you the confidence you need when confirming your pregnancy..One Step pregnancy tests are USA Manufactured and sensitive to 20mIU/mL and are over 99% accurate with clear and easy to read results..Our One Step pregnancy test will show you a result as early as 40 seconds but for the most accurate result please wait 5 minutes..The One Step testing kits are very easy to use, as simple as 1, 2, 3. 1. Immerse the pregnancy test strip for 10 seconds, 2. lay the test flat for 5 minutes, 3. read your results. One line is for NOT Pregnant, and Two Lines is for PREGNANT!.One Step pregnancy tests will work 5 days before your first day of missed period..Test Accuracy: Every Batch, without exception, is quality checked using positive and negative samples to ensure that EVERY batch gives accurate results: Test Sensitivity of 20 mIU/mL, over 99% accurate at detecting your pregnancy.