The Zebra GC420T Barcode Printer Head is a high quality, durable barcode printhead designed for use with GC420t barcode printers. This printer head is made of metal and can print high quality barcodes without smudging and fading. The Zebra GC420t barcode printhead is also easy to install and replace, making it an ideal choice for those who need a reliable and high-quality barcode printhead