Features:3.Replacement for CR10,Replacement for Ender 3 series,Replacement for Anycubic Mega S,Replacement for Tevo Tornado,Replacement for Wanhao D9,Replacement for Anet A8 E10 andReplacement for Prusa I3 DIY 3D Printer.4.Applicable thread: 1.75 mm plastic, nylon, carbon fiber, wood, etc.5.Dual Drive Extruder: Utilizes a 3:1 internal gear ratio to provide compact power for all your applications.6.Dual drive technology helps avoid slippage of filament wiring.7.Adjustable tension enables the user to find an optimum tension for their unique machine.Specifications:Material: NylonColor: BlackBrand name: BQLZRSize:3D Printer Extruder: 43 x 34 x 73.5 mm or 1.69inch x 1.34inch x 2.89inch (L x W x H)Bracket: 61.5 x 39.5 x 44.5 mm or 2.42inch x 1.56inch x 1.75inch (L x W x H)Weight: 151 gPackage include:1 x 3D Printer Extruder1 x Bracket1 x Spring1 x Gasket1 x Spacer1 x Gear1 x Tube1 x Thumb Screw1 x Hex Wrench 1.5mm1 x Hex Wrench 2.5mm1 x Cup Head Hexagon Socket Screw1 x Manual1 x Packing Box Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.