1.Using High-quality Sheet Metal And Linear Guide Rail, Smooth Movement, Improve the Printing Accuracy. 2.Extrusion Mechanism And Heat Dissipation are Integrated to Smooth Feeding And Verticality. 3.Integrated Stepper Motor And Material Breaking Detection, do not have to worry about cccidental power failure. 4.Visual red extrusion wheel, easier feeding, real-time observation of machine conditions. 5.Finished product delivery with guide rail, quick installation, easy to use. Voltage: 12V Material: Metal colour: red+black Package Contents: 1 x Integrated Direct Extrusion Multi-Function Extruder Kit 1 x MGN12C Linear Rail + 12C Slider 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.