Features:1. Use 1.75 mm Supplies2. Suitable tetrafluoroethylene tube 4mm3. 7075 aerospace quality aluminum alloy surface sandblasting oxidation.4. Equipped with two pneumatic fittings, the feed process more smoothly, you can make your extruder closer to the print head (reducing brushed remote feeding problems arising from this can to some extent), while the supplies can be placed in a more appropriate position, and not worry about other issues stuck supplies)Specifications:Material: Aluminium AlloyColor: Red+BlackModel: Left Hand, Right HandPackage Include:1 X 3D Extruder Accessorie1 X Bag of Fitting