Description 1. Upgrade the short-range extruder, extrude filament and draw back more accurately and with higher precision; 2. Increase the pulley to reduce wear and improve stability; 3. Compatible with more Filament: such as TPU flexible filament, it is more convenient to replace the filament; 4. All-metal structure, easy to replace, increase heat dissipation holes; 5. The short-range/long-range extrusion can be switched at any time, which is convenient to disassemble and does not affect the original printer function. treatment: Suitable for: CR10 for , for Pro etc 3d printer How to install Just tear down the original hotend plate and mount this direct drive kits. You could also refer to the tutorial on with search term[direct drive plate kit on 3] NOTE: the extruders position is aligned with the hotend,Pneumatic connections can be installed Color: Black Red Material: Metal Package Contents: 1Set * mounting plates + extruder (without motor) 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.