<https://grommetmart.com/product/h-1-3-self-piercing-grommet-dies/#product>
<http://schema.org/description>
"A special kind of #3 self-piercing grommet dies specifically designed to be used with only the Micron H-1 Portable Hand Plier.\r\n\r\nPlease see our size chart for all available sizes\r\n\r\nDies are final sale, and cannot be returned NO EXCEPTIONS."
<https://grommetmart.com/product/h-1-3-self-piercing-grommet-dies/>