1. Engineering Processed with advanced CNC machining, these nozzles offer thermal conductivity and enhanced hardness for consistent, quality prints. The polished inner walls and minimal edge error (less than 0.02 mm) ensure smooth filament flow and precise layer deposition, making them ideal for professionalgrade 3D printing projects. 2. Compatibility This brass nozzle kit is designed for seamless compatibility with a wide range of FDM 3D printers, including the Kobra 3, Kobra 3 Combo, Kobra S1 Combo, and Kobra S1. Verify your printer model to ensure proper fit and performance. The kit includes 10 nozzles, providing lasting value for frequent printers. 3. Versatile Filament Support Engineered to handle a variety of printing filaments, including PLA, ABS, PETG, TPU, and even wood filaments. The nozzles' heat resistance and low viscosity coefficient ensure smooth material flow, making them a musthave for any 3D printing enthusiast. 4. Effortless Performance Experience smoother filament feeding and reduced clogging thanks to the specially designed, rounded nozzle tips. The flat contact surface eliminates filament leakage, while the 1.75 mm diameter inlet ensures compatibility with standard filaments and enables quick, hassle nozzle replacement.