Optimized Performance: This kit enhances your printer's reliability and print quality by providing a more stable and precise extrusion. High Compatibility: This versatile upgrade kit includes a high-efficiency pulley turbo fan that significantly improves cooling, ensuring printing of high-detail models. Easy Installation: The kit comes with all necessary components for a straightforward installation, transforming your printer without the need for complex modifications. Enjoy a smoother and quieter printing experience immediately after setup. Working Voltage: B:24V for -3 Nozzle size: 0.4mm Adaptation consumables: 1.75mm filament Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Colour:As Shown Material:Metal Package Contents: 1 x Direct Drive Extruder Upgrade Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.