Features: brand new and high quality For cleaning and light scrubbing. Suitable for cleaning operation and removal of peeling Filament dirt. Can effectively remove consumable filaments remaining in the nozzle for multiple machines, simple and convenient to use. Brushes are suitable for: light metal, spark plugs and battery cleaning. Specifications: Item: Nozzles Cleaning Brushes Brush Material: Copper / Nylon / Steel Wire Brush Length: approx 12cm/4.72in Applicable Models:3D Printers Nozzles Block Hotend Toothbrush Usage: Nozzle Decontamination, Dust Removal And Impurity Removal Optional Package: 3PCS Steel Wire Brushes / 3PCS Nylon Wire Brushes / 3PCS Copper Wire Brushes/ 3PCS Mixed Brushes Note: The brush for head of the product is copper/steel/nylon wire, and the copper is relatively soft and easily deformed. Therefore, the brush for head may be deformed or warped during transportation. Please remember that this does not affect the use. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 3PCS x Brushes