I use these blood glucose test strips regularly and they are very accurate. We also use these where I work in a health care setting. Easy to use and read and do not require a lot of blood to test. The box contains 50 strips. They work with a variety of meters including most Freestyle meters. They are a little more pricey than other brands but they are accurate and that is what you need when using these. Bargains are best saved for other things because it is the accuracy you are paying for here. I trust them.