The special design of the hotend heating assembly allows for easy separation of the thermal and electronic components of the hotend. Additionally, the magnet block installed on the hotend heat sink enables quick and precise fixation of the hotend in its exact mounting position. This feature enhances the convenience of a fast exchange and allows for easy removal and installation of the hotend. Please ensure that the hotend is cooled down before replacing it, and do not touch the heat block (the lower part of the hotend) to prevent burns. In the box: hotend with nozzle. Compatibility: A1 series.