Features: Upgrade your Kobra3/Kobra2 series printer with this metal extruder pulley, engineered to improve print stability and reduce wear for long lasting performances in high intensity printing tasks. Crafted from high strength metal with a accuracy engineered , this replacement pulley ensures smooth filament feeding and seamless compatibility for Kobra3/Kobra2 models, featuring a tool installation design for effortless upgrades. Ideal for makers, , and frequent users seeking credible printer replacement parts to minimize print errors and extend machine longevity across series devices. for extended printing , accurate critical projects, or routine maintenance upgrades where consistent extrusion and reduced pulley slippage are essential for output. Optimized for speed and accuracy, this upgraded pulley reduces filament jitter during high speed printing while maintaining structural integrity, delivering performances for demanding printing workflows. Specifications: Component: Metal Applicable model: Suitable for Kobra3/Kobra2 series Use scenario: Suitable for printer parts replacement and upgrade Package Includes: 4x Pulleys note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.