This temperature strip is designed for use with steel milk jugs, specifically to measure the correct temp range needed for cappuccinoand latte frothing. The easy-to-clean strip features a shiny finish and is heat-sensitive, providing a convenient way to monitor the temperature. These should provide many months or years of accurate use. (I have personally used the same strips on my coffee machines for over 3 years). If you are looking for higher temperature strips please see my other listing's. You will receive one temperature strip per purchase.