Compare Dual Gear Pulley Dual Drive Extruder Kit + 3Pcs MK8 1.75/0.4MM Brass Nozzle Accessories Kit for 3D Printer Price

Advantage 1 Double gear extrusion mechanism high extrusion force ensuring smooth feeding2 The original aluminum alloy driver is supplied with CR 10S PRO It can also be installed in Ender 3 Tornado stable and durable 3 All metal aluminum alloy diy aluminum block need to be assembled by itself4 High quality5 Better pressure pushes the filament into the printer nozzlePackage included 1 x Dual Pulley Extruder Kit3 x MK8 1 75mm 0 4mm Brass Nozzle