The Ascensia Contour Glucose Test Strips Box of 50's allows the tester to simply “plug” it into the meter while the sip-in action accepts the tiny blood sample into the strip. These strips allow for reliable results because the various interferences that might skew results on other strips are accounted for. Benefits: Blood glucose test strips Used only with contour blood glucose meters No Coding technology Tiny 0.6 µL blood sample 5-second countdown