Features: Brand new and high quality This material rack with two bearings can reduce the pulling force of the extruder when pulling the consumables, and further reduce the current situation of the extruder slipping and biting. Made of metal and Plastic, stable, durable. Easy installation and quick installation. 3D Printer Filament Holder is Rotatable, do not entangle the filament. It is very convenient to use. Suit for Ender-3 series, CR10 series, fits for most 3d printers. Specifications: Material:Plastic+Metal Type:Barrel/Sheet Metal/Barrel and Sheet Metal Size:Approx.110x30mm/4.33x1.18inches Package Includes: 1 Set 3D Printer Filament Holder note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.