<b>FYSETC is a professional supplier of 3D Printers related accessories products. Include Popular Printer CR-10, Ender 3, Prusa i3, Makerbot, Anet A8, Duplicator i3, Tevo Tarantula, Maker Select V2 etc. It has a professional R&D team and high quality after-sales service to ensure that you can purchase at a reliable price. If you need more, please feel free to email or QA us, we and our engineers are very happy to assist you.</b><br><br> <b>Package includes:</b><br> 1 x 5015 fan cooling<br> 1 x 4010 fan cooling