1、[20 Pieces] There are 20 pieces of MK8 brass nozzles in the package, which is enough for you to meet your daily needs about extruder nozzles replacement. 2、[High Quality Brass Material] MK8 nozzle is made of high quality brass material, with smooth and shiny surface and long service life, it is asy to install and replace. 3、[Accurate Design] The nozzle can prevent the print head from leaking, produce consistent printing, reduce corner resistance, and avoid using rounded corners to block filaments. 4、[Easy To Install] The extrusion hole is centered and concentric, the hole diameter is smooth, the thread is clean, and it is connected with M6 for easy installation. 5、[Applicability Compatibility] The MK8 extruder nozzle is compatible with all 75 mm for PLA ABS 3D printers, it is a perfect replacement that can fully match the original product.