Choose square silver metal tins with covers for packaging a wide range of products with ease. In the center of the matching rolled edge covers is a clear window made of APET plastic. APET plastic is which has all the characteristics of PET with added thickness and less flexibility. The windows are both sturdy and crystal clear, which allows for easy consumer visibility. The square metal tins are composed of tin-plated steel which creates barriers against water, odors, and gases while storing.