1.75mm Filament Golden Right Left Long Hand 3D Printers Parts Block MK8 Extruder This modified MK8 Extruder has a filament guide tube,all screws,spare drive gear,and upgraded Bowden tube fitting,for CR-10 3D Printer.Our design gives complete support of flexibles from the intake and output ends. It will also allow to print faster with sustained quality and no risk for grinding the filament. Full metal aluminum alloy,diy aluminum block,need to assemble by yourself.with better stronger pressure pushing the filament into the printer nozzle Color:gold material:metal Size:1.75 mm Direction:Right Package Contents: 1 set * frame 8 * screws 6 * accessories Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.