Larger, wide-mouth test strip. Eight electrodes at top of strip work with meter technology to help the system detect and prevent unreliable results. The Accu-Chek Aviva glucose test strips give you accurate and easy test results the first time. Their wide mouth allows you to easily apply the required blood sample to the test strip. Aviva test strips feature alternate testing sites and automatic expiration checks. The advanced electrode testing gives you the assurance of accurate test results each time. The Accu-Chek Aviva diabetes test strips give you fast and accurate 5 second results.