Are you looking for professional, yet dual Z- upgrade kit for 3D printer? Are you in search of sturdy, trustworthy tool that can do multiple jobs at once? , ! The ender 3 dual Z- upgrade kit for 3D printer must meet your needs. It is one of the for you. Features - Color: Assorted color. - Material: Metal. - Size: 4.70X4.00X1.80cm/1.85X1.57X0.71inch. - Made of metal material, sturdy, not easy to rust, corrode or stain, practicable and long time service life. - High strength, high hardness, excellent and useful, and strong, practical 3D printer accessory. - Fine polishing, precise size, useful and reliable for your 3D printer, wonderful workmanship and detail design. - This ender 3 dual Z- upgrade kit is very easy to install and simple to operate, giving you huge convenience. - Professional and practical design with simple appearance, easy to carry and simple to use. Package list: 1 x stepper motor 2 x lead screw bearing guides 1 set x power supply holder 1 x coupler 1 lead screw bracket with brass nut 1 x dual Z stepper cable 1 motor bracket 1 x lead screw 1 set x screw tools