The Precision Xtra Glucose strips are manufactured by MediSense and are meant to be used with the Precision Xtra Advanced Diabetes Management System. Use with any other platform may incur poor and inaccurate results. The Precision Xtra Glucose strips allow you to test your blood glucose level on your arm with little or no pain. The advanced test strip technology feature two distinct tests that give you results within twenty seconds of initiation. These strips are for vitro diagnostic use only and feature clinical accuracy. You can apply a small blood sample from strip-to-finger or finger-to-strip. When you insert the test strip into the meter it turns on automatically to give you a quick and accurate reading. This package includes 50 strips and instructions for use. Savings of over 65%! You should always shop with us first.