The tag is flexible and can be stuck on metallic assets easily, specially for irregular and uneven surface, such as steel boiler, metal container, steel pipe, etc. It has good performance on metal and can be printed with logo, numbers, text by RFID printers, such as Zebra ZT410 Silverline,Sato CL4NX,Toshiba SX-5,Postek TX3r,etc.Synchronous encoding is also available.