3D Printer Accessories Drivegear Dual Gear Drive Wheel Extruder Gear with B8D7

1 x Upgrade Dual Drive Gear. 2 types of option - with the wire, without the wire. Type: With the wire / Without the wire (Optional). After optimization, deepen the gear depth, rearrange the spacing between the, the extrusion is more precise and stable, and the printing effect is better.