Benefit : FreeStyle Optium Blood Glucose Test Strips for self-testing your blood glucose. Compatible with FreeStyle Optium Neo and FreeStyle Libre systems.Individual foil-wrapped strips . Small sample size (0.6 µL) .5 second test time . Fill trigger ensures reaction starts only when sufficient sample has been applied .5 second sample reapplication . Top or tip fill (white area at the end of the test strip) .