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. Type:Barrel/Barrel and Sheet Metal Size:Approx.110x30mm/4.33x1.18inches Specifications: A: Barrel/B: Barrel Kit Color: Black Material: plastic+metal Package Contents: 1 * 3D Printer Filament Holder Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.