### Perfect Compatibility Precision-engineered to fit Creality K2, K2 Pro, and K2 Plus printers seamlessly, matching the original extruder structure and filament runout detection system. ### High Torque & Stable Feeding All-metal helical gear with built-in bearing ensures smooth rotation, eliminating filament jams and under-extrusion even at high print speeds. ### Long-Lasting Durability Made of high-hardness metal with anti-wear treatment, resistant to deformation and abrasion from long-term use with various filaments. ### Easy & Direct Replacement No modification required, direct plug-and-play installation to restore the extruder’s original performance, saving maintenance time. ### Optimized for Filament Detection Precision gear tooth design ensures accurate rotation feedback, working perfectly with the printer’s filament runout sensor for reliable printing.