Features Good Performance This X-axis linear rail kit has sleek, low-friction motion characteristics that linearly reduce energy loss and mechanical wear, allowing the 3D printer to print at higher speeds. High Accuracy This 3D printer X-axis linear guide has high rigidity and high stability, maintains better accuracy during movement, reduces printing vibration, and improves print quality. Excellent High Carbon Cr Steel Material - This 3D printer linear rail is made of excellent Cr steel material with high carbon content, which is strong and abrasion resistant, not easy to damage, and has a long service life. Good Compatibility This 3D printer linear guide rail has good compatibility, it is suitable for Neptune 3 MAX, Neptune 4 MAX and can be used to replace the old and damaged rails, very practical. Modular Design This printer linear rail guide kit features a modular design that requires no firmware modifications or wiring, can be easily upgraded and starts printing as soon as it is installed. 1. Good Performance This X-axis linear rail kit has sleek, low-friction motion characteristics that linearly reduce energy loss and mechanical wear, allowing the 3D printer to print at higher speeds. 2. High Accuracy This 3D printer X-axis linear guide has high rigidity and high stability, maintains better accuracy during movement, reduces printing vibration, and improves print quality. 3. Excellent High Carbon Cr Steel Material - This 3D printer linear rail is made of excellent Cr steel material with high carbon content, which is strong and abrasion resistant, not easy to damage, and has a long service life. 4. Good Compatibility This 3D printer linear guide rail has good compatibility, it is suitable for Neptune 3 MAX, Neptune 4 MAX and can be used to replace the old and damaged rails, very practical. 5. Modular Design This printer linear rail guide kit features a modular design that requires no firmware modifications or wiring, can be easily upgraded and starts printing as soon as it is installed. Specification: Item Type: Linear Rail for 3D Printer Material: High Carbon Cr Steel Application: For Neptune 3 MAX, For Neptune 4 MAX How to use: Remove the 3D Printer Linear Rail for direct use. Packing list: 1 x guide rail. 4 x Sliders 1 Pack x Screw Fittings 1 x accessories. Package List 1 x Guide Rail 4 x Sliders 1 Pack x Screw Accessories 1 x Accessories