Features Upgraded Dual Z Structure: Improved stability and smoother , enhancing the 3D printing performance. High-Quality Accessories: Utilizes all-aluminum coupling and original 42 stepper motor, ensuring stable and reliable . Material: Constructed from high-quality metal, providing excellent wear resistance and a longer service life. Compact and Lightweight: Easy to install, offering convenience and an improved user experience. Convenient Package: Includes additional accessories, saving you money and providing added convenience during installation. Features: 1、Upgraded dual z structure, provides smooth , and better performance. 2、High？quality accessories, using all？aluminum coupling and original 42 stepper motor, stable . 3、Made of high？quality metal material, hard, wear？resistant and longer service life. 4、Small, light in weight, easy to install, bring you more convenience, and improving good experience. 5、With other accessories, you don't need to spend money to buy it, which provides more convenience for installation. Specification: Condition: 100% Item Type: Dual Z Axis Upgrade Kit Material: Metal Plate, Aluminium Alloy Color: As the Picture Shown Function: Upgrade for ry type 3D printer such as for 3DEnder3/3S to dual Z axis to improve printer stability. Package List: 1 x Motor 2 x Z Screw Bearing Holder 2 x Power Supply Holder 1 x Coupling 1 x Fixed Sheet Meta 1 x Motor Wire 1 x Motor Mount 1 x Screw Rod 14 x Screw 9 x Nut 2 x Hex Wrench 1 x Hexagonal Key 1 x Screwdriver Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List 1 x Motor 2 x Z Screw Bearing Holder 2 x Power Supply Holder 1 x Coupling 1 x Fixed Sheet Meta 1 x Motor Wire 1 x Motor Mount 1 x Screw Rod 14 x Screw 9 x Nut 2 x Hex Wrench 1 x Hexagonal Key 1 x Screwdriver