ITEM NAME:All-metal Remote Extruder Extrusion Head 1.75 includes Nema 17 stepper O3L2 All-metal Remote Extruder Extrusion Head 1.75 includes Nema 17 stepper O3L2 3D printer accessories colour: Photo Color Material: metal Package Contents: 1 * extrusion head 1 * bracket Only the above package content, other products are not included. Note: Light shooting 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.