Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you! The 3D printer filament holder has 2 pieces in total, black, Can be used to replace old or worn filament holders to fully meet your needs. The 3D filament spool holder is made of high quality plastic, fine workmanship, light texture and good rust resistance. The filament frame has high hardness, is not easy to damage, and has a long service life. Stable and durable foot pads to increase stability and prevent the stand from moving while working. The draw material slides smoothly to avoid the appearance of a filament winding stuck on the thread disc. Each 3D printer filament holder has a smooth bearing on both ends to reduce friction. The bearing can slide very smoothly when working, and the output is faster. Our 3D printer filament holder is mainly used to fix 3D printer filament. Our filament spool holder for 3D printers can effectively prevent tangles and make work easier.