8MM MK8 Remote Extruder All-metal Aluminum Remote Extruder For 1.75mm \/ 3mm Filament 3D Printer<br> Feature:  <br> Model: MK8 Remote  Extruder DIY KIT<br> Material:  aluminum-alloy<br> Product Size:  Apply to 1.75mm\/3mm Filament<br> Color: Gold<br> Inner Diameter of Gear: 8mm<br> Size: 81mm x 58mm x 20mm(Total Hength x Lentgh x  Width)<br>  <br> Package Included:  <br> 1 x Full-Metal Remote Extruder<br> 1 x Brass Drawing-enroller<br> 2 x Nozzle<br> 4 x Assembly screws