3D Printer 3 Dual Z- Upgrade Kit for 3/ 3 V2/ 32065\n\n[Best Upgrade]The dual z upgrade kit is compatible with 3/ 3 Pro/ 3 V2/ 3D printer.Easily improve 3D printers with low cost efficiency to Dual Z mode.\n[Smooth Running]Upgrade Single Z- structure to a dual Z- structure, make the printer more easy to Leveling, both ends of the X are raised and lowered synchronously, which reduces difficulty and frequency of bed leveling obviously.\n[Increased Accuracy]Dual Z structure reduces the layer ripple caused by Z- vibration, avoiding backlog of filament thoroughly, which improves stability of 3D printing and increases the printing performance of 3D printer.\n[Stable Performance]Compared with Closed Timing Belt, this 3D printer parts set still retains the design of stepper motor to screw rod smooth operation.\n[Easy Assemble] - No need to modify or weld the machine, no need to replace motherboard, this 3D printer accessories kit comes with instructions, could be assemble quickly.t