Feature: 1. [Fast Disassembly] The quick swap nozzle adopts all metal integrated design, making it convenient to disassemble and replace, compatible with for K2 Plus and for Hi 3D printers. 2. [Upgraded Materials] The insulation device is made of Ti alloy and can reduce heat conduction, while the nozzle is made of hardened steel and CrZrCu, with a Mohs hardness of 7.8. 3. [Wide Compatibility] This quick swap nozzle is suitable for various filaments such as PLA, ABS, PETG, TPU, PP, PC, PLA-CF, PA-CF, and PET-CF. 4. [Smoothly Inner Wall] The inner wall of the nozzle is smoothly, with a roughness of Ra<0.4 , not easy to block, ensuring smoothly filament feeding. 5. [Uniform Heating] Tight fitting connector effectively prevents filament leakage during printing. The copper alloy with a thermal conductivity of 330 W/m·K ensures even heating. Specification: Item Type: Quick Swap Nozzle Material: Hardened Steel, Cr Zr Cu Length: Approx. 76mm / 2.99in Filament: 1.75mm Thread: M6 Application: for K2 PLUS, for Hi . Package List: 2 x Quick Swap Nozzles 2 x Storage Boxes