Feature:1. Better Effects: Dual Z axes can effectively reduce filament clogging to make the printing smoother and improve the effects.2. Stable Working: Adopting all aluminium alloy coupling and stepper motor to ensure better working stability, very reliable.3. Practical Uses: Allows for wide application on for Ender 3, for Ender 3 Pro, for Ender 3 V2 3D printer, high in efficiency.4. Great Material: Using premium aluminium alloy, stainless steel and ABS materials, not easy to deform, durable for long use.5. Easy to Install: Comes with light weight and compact size as well, has complete accessories to simplify the installation.Specification:Item Type: Dual Z Axes Upgrade KitColour: BlackProduct Material: Aluminium alloy, stainless steel, ABS.Screw: T8 2mm lead screwLead Screw Length: Approx. 365mm / 14.37in.Adaptation: For Ender 3, for Ender 3 Pro, for Ender 3 V2 3D printer. .Package List:2 x Lead Screw Bearing Guide2 x Power Supply Bracket1 x Coupler1 x Z Axes Bracket1 x Stepper Motor Cable1 x Z Axes Motor Bracket1 x Lead Screw1 x Motor13 x Nut15 x Screw3 x Solenoid3 x Hex Wrench1 x Wrench1 x User Manual