🚀 Elevate Your 3D Printing Game! Say goodbye to feeding issues with adjustable spring tension. Crafted from premium materials for long-lasting performance. Experience flawless 3D printing with reduced jamming. Quick installation with clear calibration instructions. Fits a wide range of popular 3D printers effortlessly. Adjustable Tension Dual Gear Mechanism All-Metal Design The Redrex Dual Gear Ender 3 Extruder Metal Drive Feeder Upgrade is designed for enhanced performance in 3D printing. With its dual gear extrusion mechanism, adjustable spring tension, and all-metal construction, it ensures reliable filament feeding and compatibility with various Ender and CR10 models. Weighing only 59g and compact in size, this upgrade is a must-have for serious 3D printing enthusiasts.