Feature:1. MODULAR DESIGN FOR EASY MODIFICATIONS: No firmware or wiring modifications required. Easy to upgrade and start printing immediately.2. LONG LIFESPAN: Made of high carbon chromium steel material, the support rod features strong wear resistance, low noise, even force distribution, and more durable.3. HIGH SPEED PRINTING: Linear motion characteristics with smoothly and low friction movement reduce energy loss and mechanical wear, allowing the 3D printer to print at higher speeds.4. HIGH ACCURACY PRINTING: High rigidity and stability linear guide rail maintains excellent accuracy during motion, reducing printing vibrations and improving print quality.5. APPLICABLE MODEL: The 3D printer supporting rod set is suitable for Neptune4, for Neptune4 Pro3, check the model for better fit!Specification:Item Type: 3D Printer Supporting Rod SetMaterial: High Carbon Chromium SteelApplicable Model: For Neptune4, for Neptune4 Pro.Package List:4 x Steel Tube4 x Metal Bracket2 x Wrench1 x Instruction Manual7 Bag x Accessory