The direct drive extruder conversion kit is used for Ender-3 V2 3D printer, 1.75mm direct drive extruder. The kit adopts 3:1 reduction ratio, accuracy milling gear hobbing and engineering technology, powerful, light and compact. The kit is designed with excellent torsion and resolution, perfect for Ender-3 V2 printer. Balanced transmission ratio is 3: 1 and lightweight gear set can make retraction quickly. High quality material can make sure the durability and stability of the product. Item Type: Direct Drive Extruder Conversion Kit Material: Aluminum Alloy Applicable Models: For Ender-3 V2 Product Size: Approx. 13×6.5×5.5cm / 5.1×2.6×2.2in (Length X Width X Height). 2 x White Tube. 1 x Connection Cable. 1 x Blue PTFE Tube. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. Post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.