1Better Effects: Dual Z axes can effectively reduce filament clogging to make the printing smoother and improve the effects. 2Stable Working: Adopting all aluminium alloy coupling and stepper motor to ensure better working stability, very reliable. 3Practical Uses: Allows for wide application on for Ender 3, for Ender 3 Pro, for Ender 3 V2 3D printer, high in efficiency. 4Great Material: Using premium aluminium alloy, stainless steel and ABS materials, not easy to deform, durable for long use. 5Easy to Install: Comes with light weight and compact size as well, has complete accessories to simplify the installation. Item Type: Dual Z Axes Upgrade Kit Colour: Black Product Material: Aluminium alloy, stainless steel, ABS. Screw: T8 2mm lead screw Lead Screw Length: Approx. 365mm or 14.37in. Adaptation: For Ender 3, for Ender 3 Pro, for Ender 3 V2 3D printer. 2 x Lead Screw Bearing Guide 2 x Power Supply Bracket 1 x Coupler 1 x Z Axes Bracket 1 x Stepper Motor Cable 1 x Z Axes Motor Bracket 1 x Lead Screw 1 x Motor 13 x Nut 15 x Screw 3 x Solenoid 3 x Hex Wrench 1 x Wrench 1 x User Manual