Specifically designed for Creality K2 Plus and Hi series 3D printers, this all-metal nozzle set enables quick, tool-free replacement. Simply twist and lock. Enjoy seamless transitions and greater printing efficiency. The kit includes four nozzles: 2 x 0.4mm, 1 x 0.6mm, and 1 x 0.8mm, making it suitable for both high-precision and high-speed prints. It also comes with thermal grease to fill small gaps and boost heat conductivity for more stable performance.