3D Printer Kit Standard + J-head Clogged Extruder Nozzle (2each) .2mm .3mm .4mm .5mm bits + Pin Vise Tool MK7 for MK8 Makerbot RepRap Felix 3.0 3.1 Universal 1.75mm filament ABS PLA Will clear standard and J-head nozzles Shipped in protective plastic case Nozzle AND Extruder jams 3.5" comfortably held nozzle cleaning pin-vise tool Restore print quality in minutes!