Accu-Chek 25 Strips are blood glucose test strip that is used with Accu-Chek blood glucose monitoring systems to measure blood sugar levels in people with diabetes. The strips are inserted into the blood glucose meter, and a small amount of blood is placed on the strip. The meter then reads the glucose level in the blood and displays the result on its screen. Accu-Chek 25 Strips are designed for single-use only and must be replaced after each use. It is always important to follow the instructions provided with the strips and the blood glucose monitoring system to ensure accurate and reliable results.