Features: Metal plastic construction ensures long durability, featuring 60° tilts for smoother filaments feeding in Ender 3 series 3D printers. Reinforced structure supports 0.5 or 1kg spools (1.75mm/3.0mm) with securelys screw installation on 2020/2040 aluminum frame, minimizing wobble during printing. for Ender 3 and CR 10 owners needing reliable filaments spools holders for ABS/PLAs materials management. Organizes workspaces by mounting directly onto printer frame, maintaining consistent filaments alignment for uninterrupted 3D printing projects. Universal compatibility extends to MK10 extruder systems and aluminum frameds printers, combining industrial stability with toolless assembly convenience. Specifications: Materials: Metal and Plastic Color: Black Size:as picture show Applicable model: 3d printer filaments spools brackets for 2020, 2040 aluminum frame 3D printer Used for ender-3, ender-3S, ender-3PRO, CR-10, CR-10S, CR-10SPRO Package Includes: 1Set filaments Holder note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.