UPGRADED METAL EXTRUDER: Now without the pneumatic connector and the small gaps created inside, now you can print flexible, TPU, without a hitch ADVANTAGES, our extruder drive is you have stronger pressure on the gear arm for the filament into the printer nozzle resulting in less filament and accurate extrusion. Also, the spring tension on our new extruder is adjustable, by turning a small hex nut it will put more pressure so versatile for all kinds of filaments. Compatible with virtually all 3D Printer: 3, 3 Pro, 3 X, 3 V2, 3 Pro X, 5, 5 Plus, 5 Pro, -10, -10 V2, -10 Max, -10 S4, 10, -10 S5, -10 Mini, -10S, -10 Plus, -X, 20, 20 Pro. This upgrade kit is also compatible with other 3D printers except the printers using a direct drive setup. The metal feeder extruder kit is easy to mount, everything you need is in the kit except the hex key which is included when you purchased the 3d printer from . Our extruder is compatible with Bltouch, , and any hotend set up for the mount. Works with all kinds of 1.75mm filaments, PLA, ABS, TPU, , , and Nylon. You Unlike the black plastic feeder extruder that comes with the 3D printer, our metal extruder both more reliable and will last than the black plastic one. Colour:Red Material:metal Package Contents: 1* Metal extruder kit Only the above package content, other products are not included. Note: Light 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.