Features: Easy to install, can effectively remove the residual filaments from the nozzle. Enhances your 3D printing experience with Silicone Nozzle Brush Kit, maintain optimal performances of your printers extruder. Effectively removing residual filament from nozzles without causing damage. Suitable for use in a variety of settings, from home workshops to educational institutions and commercial 3D printing labs. This kit features integrated design with the printer's heat bed, automatically executing cleaning actions post each print task without manual intervention. Specifications: Component:ABS Type:01/02 01:Approx.37x8mm/1.46x0.31inch 02:Approx.28x6mm/1.1x0.23inch Package Includes: 5Pcs Nozzle Brush note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.