Compatible for A1 and A1 Mini 3d Printer The Hotend Heating Assemblyis specially designed to support the quick swap design of the hotend. A quick clamping mechanism is used to secure the heater block and heating base, enabling easy separation of the thermal and electronic components of the hotend. The hotend heating assembly can heat the hotend up to 300℃ and measure the real-time temperature of the hotend with the included thermistor. Compatibility: For a1 mini hotend parts Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Compatibility:for A1 Series Color: As Shown Material: Aluminium Package Contents: 2 * Hotend Heating Assembly 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.