Features: This maintenance set combines active support shaft assembly, optimized PTFE tube, and reinforced feeding funnel to ensuring smooth filament flowing and long term printer reliability. Crafted with metal plastic, the lightweight component minimize friction during high speed printing while maintaining dimensional accuracy across prolonged printing Ideal for professional makers and printing enthusiasts requiring consistent, particularly those managing multiple component changes in complex multi color projects. Essential for workshop environments where continuous printer operational demands feeding mechanisms and stable support structures to prevent filament or misalignment. Featuring easy installation components designed for quick part replacements without interrupting critical print jobs. Specifications: Component:Metal+Plastic Size:Approx.82.5mm/3.24inch Package Includes: 1Pc Support Shaft note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.