Features:Upgrade 3D printers such as Creality 3D Ender3/3S to dual z-axis to improve printer stability.After the upgrade of dual Z axis, the x-axis rises steadily and runs smoothly, which completely avoids the bottom consumables stacking pressure, reduces the lamination caused by z-axis vibration, and greatly reduces the leveling difficulty and leveling times.Compared with the upgraded double Z kit sold on the market, this kit contains a power fixed module, which no longer allows the power supply to be scattered freely to avoid electric shock and short circuit.No need to weld or replace the motherboard, directly insert the one to two motor wire into the motherboard.Use original T8 precision screw rod, it runs smoothly.Specifications:Material: Sheet Metal + Stainless SteelFits for: Compatible with Creality Ender 3/3S/3 Pro 3D PrinterPackage Size: 52.0 * 15.0 * 8.5cm / 20.5 * 5.9 * 3.3inPackage Weight: 899g / 31.7ozPacking List:1 * Dual Z Axis Upgrade Kit