Optimal Performance: Designed to deliver superior cooling, these fans efficient airflow crucial for maintaining optimal operating temperatures of your 3D printer components. Versatile Compatibility: Perfectly suited for Prusa MK4/XL, adding to their utility and value. Long-Lasting Durability: Engineered with quality materials, these fans promise lasting performance to keep your equipment running smoothly without frequent replacements. Quiet Operation: Enjoy a less disruptive printing experience thanks to the fans' quiet design, allowing for focus and concentration, even during extended printing sessions. Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Colour:Black Material:ABS Package Contents: 1 * Cooling Fan 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.