The LulzBot SL Tool Head is compatible with the LulzBot Mini 2 Desktop 3D Printer. With a 250-micron nozzle diameter, this extruder can print rigid and flexible 3mm filaments. The extruder has a maximum temperature of 554°F (290°C). A sample coil of PLA filament is included. Please note that this extruder should not be used with abrasive or composite (wood-filled, metal-filled, etc.) filaments.