1. High quality ball bearings, more stable and Long life, suitable for continuous work. No maintenance required. 

2. Power Connection: 2 Pin-XHB2.54; Low noise while cooling the prints.

3. DC 24V 50mm blower cooling fan extruder fan for cooling prints, or other cooling needs.

4. Easy to cool the filament that is deposited on your print. Cooling your print can make the difference between a beautiful print and a failed print.