This Olsson Block hotend kit is improved for Ultimaker 2 that the nozzle and heat block are two seperate pieces , can change the nozzle size easily.
Filament size use: 1.75mm, Or 3.0mm (Optional)
Nozzles: 0.4mm
Package(as first picture shows in the listing):
2pcs Olsson block 2pcs nozzles(0.4mm) 2pcs PTFE 2pcs stainless steel part 2pcs spring 10pcs screw 1set Aluminum Heat Sink kit 1 x DIY Ultimaker 2 Extruder Plastic Frame Kit 2 x Liner Ball Bearing 1 set fans kit (2pcs 12V fans, 1pcs 5V fan)