I have used these for several years on clothes, my metal work toolbox, my desk file cabinet, in my car to hold my glasses. Small work tools, and many other applications where their magnetic properties and size are perfect. My family and friends are always "borrowing" them for their "temporary" need. I think I have now bought, over the years, probably 100+ mainly black or chrome. My Wife and Daughter have found, besides their glasses, many other uses for them. We love their convience andversitility!🥰