Features 1、EASY MODIFICATION: The 3D printer X axes rail feature a modular design that require no firmware or wiring modifications. Easy to upgrade and start printing immediately 2、LONG SERVICE LIFE: X axes linear guide is made of high carbon chromium steel, possess strong wear resistance, smooth movement, low noise, uniform force, more durable 3、HIGH SPEED PRINTING: Linear guides with smooth and low friction motion characteristics reduce energy loss and mechanical wear, enabling 3D printers to print at higher speeds 4、HIGH ACCURACY PRINTING: High rigidity and high stability of the linear guide, can maintain better accuracy in the process of motion, reduce printing vibration, improve printing quality 5、APPLICABLE MODEL: 3D printer linear rail guide kit is suitable for models of for Ender3, for Ender3 pro, for Ender3 V2, for Ender3 S1, for Ender3 S1 Pro Specification Item Type: 3D Printer X Axes Rail Material: High carbon chrome steel Applicable Model: For Ender3, for Ender3 pro, for Ender3 V2, for Ender3 S1, for Ender3 S1 Pro 3D printers Package List 1 x X Axes Rail 3 x Sliders 10 x Screws 1 x User Manual 4 x Accessories