Choose 8 oz round metal tins with rolled edge covers for packaging products that could include candy, teas, spices, and more. The metal tins are composed of tin-plated steel which creates barriers against water, odors, and gases while storing. 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.