The Prusa Obxidian is a high-quality nozzle specially designed for the Nextruder from Prusa. Because it is made of hardened steel with a corrosion-resistant coating, the nozzle is ideal for abrasive filaments such as carbon particles. Even at high temperatures the nozzle will deliver excellent results and will not deform. This product is 0.6mm and suitable for Prusa's MK4, XL and MK3.9 3D printers.