-some of the Everlasts.. These nozzles will allow you to print spool after spool of Carbon Fibre, Bronzefill and other abrasive materials. They also leave a particularly beautful print with PLA , ABS and other filaments. We now also have 0.50mm EVERLAST! This is perfect for architects and engineers, for a sometimes better “relation” to the slicer in a metric model. Example when walls are 0.50 mm, 1.0mm, and so on. We are making this nozzle for Google and are now adding it to our catalog, for you. Printing Carbon Fibre on a standard Core will destroy it completley in a few hours, or less than 500g filament. This nozzle can print all day long, week after week. Many users experience that the EVERLAST Ruby “paid itself back” after 1 time use only!