Application: The filament disk rotates concentrically to make feeding filament more smoothly, suit for all 0.5KG 1Kg PLA/ABS/Nylon/Wood/TPU 1.75mm 3.0mm 3d printer filament Material: aluminum alloy; Surface Treatment: anodizing Color: Red Package Content: 1 kit 3D printer spool filament holder 2 pcs M4 T Nuts 2 pcs M4x10mm screws 1 pcs allen key