Description: 3D printer nozzles, international copper material. Environmental protection, safety, harmless. High-quality raw materials, fine workmanship. Strict quality control system, quality assurance. Brand new and high quality Specification: Suitable for 1.75 Filament Application: 3D printer extruder Material: Copper Size: Approx. 13*6mm Package Includes: 5 Pieces 3D Printer Nozzle