DeepBlue COVID-19 Antigen Rapid Lateral Flow Self-Testing Kit - 5 Tests - Fast, Accurate, Easy To Use, Reliable - DEEPBLUE Antigen Rapid Test Lateral Self-Testing Kit 5 Tests (similar to Flowflex Antigen tests) A rapid test for the detection of SARS-CoV-2 nucleocapsid antigens in anterior nasal swab specimens. For in vitro diagnostic use only. For self-testing.