Feature: 1. ▲ Upgrade 3D printers such as creality 3D Ender3 to dual z-axis to improve printer stability. 2. ▲ During the printing process, double Z axis synchronous lifting is conducive to better printing accuracy and printing stability. And supporting rod set to form a stable triangle bracket, make the whole machine become firm. 3. ▲ Prevent the printer shaking when the Z axis to a certain height and affect the printing quality. 4. ▲ Made of premium aluminum and stainless steel, more durable and provides longer service time. 5. ▲ Any problem, please contact our store without hesitation. Honor to serve you. Specification: Features: ▲ Upgrade 3D printers such as creality 3D Ender3 to dual z-axis to improve printer stability. ▲ During the printing process, double Z axis synchronous lifting is conducive to better printing accuracy and printing stability. And supporting rod set to form a stable triangle bracket, make the whole machine become firm. ▲ Prevent the printer shaking when the Z axis to a certain height and affect the printing quality ▲ Made of premium aluminum and stainless steel, more durable and provides longer service time. ▲ Any problem, please contact our store without hesitation. Honor to serve you. Specification: Color: Black Main Material: Aluminum, Stainless Steel Fits for: Compatible with Creality Ender 3 3D Printer Package Size: 39*14.5*15cm/15.4*5.7*6in Package Weight: 1650g/58.2oz Packing List: 1 * Dual Z Axis Upgrade Kit 1 * Ender 3 Pull Rod Kit Package List: 1 * Dual Z Axis Upgrade Kit 1 * Ender 3 Pull Rod Kit