Description
SIMPLE TO USE. It takes only 5 minutes to get results: 2 lines appears if clean, 1 control line only appears if not clean.IT IS AFFORDABLE AND RELIABLE way to know if one is free from FEN before taking official tests at work, school or any other institution..SIMPLE TO USE. It takes only 5 minutes to get results: 2 lines appears if clean, 1 control line only appears if not clean.IT IS AFFORDABLE AND RELIABLE way to know if one is free from FEN before taking official tests at work, school or any other institution..CONFIDENTIAL. Take in the privacy of your own home.