This is a amazing dual Z axis upgrade kit for Ender 3 V2. Fit: for Ender3 V2 3/3S/3pro ender 3 v2 max 3D printer. After the upgrade of dual Z axis, the x-axis rises steadily and runs smoothly, which No need to weld or replace the motherboard, directly insert the one to two motor wire into the motherboard.
eBay