All Frog 3D tags feature the proven Impinj Monza 4 IC family. High-Performance Tag for Metallic Surfaces and Everyday Objects Smartrac's unique Midas Flagtag® design uses the metallic surface as part of the antenna structure. This ensures superior performance in less demanding physical environments, while providing cost advantages compared to the foam-based inlays and hard tags typically used in tougher industrial environments. Midas Flagtag can solve the issue of tagging metallic packaging and liquids in high-performance and cost-effective ways. It is the first-choice on-metal solution for the authentication of retail, pharma, healthcare or industrial items, as well as supply chain & asset management applications.