Cheap And Discounts Latest CR10 PRO Dual Gear All Metal Extruder Adjustable Extrusion Spring Compression for Ender 3 5 CR10S PRO 3D Printer Parts Wholesale. Buy Directly From Merchant 5A Plus. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.