3D Printer Kit Clogged Extruder Nozzle (2each) .2mm .3mm .4mm .5mm bits + nozzles .2 .3 .4 .5mm + Tool MK7 MK8 Makerbot RepRap Felix more 3.0 3.1 Universal nozzle 1.75mm filament ABS PLA Will clear nozzles and produce finer prints Shipped in protective plastic case Nozzle AND Extruder jams 3.5" comfortably held nozzle cleaning pin-vise tool 4 quality brass nozzles, (1 each) .20mm .30mm .40mm .50mm