Premium Nozzle Quality: Made of high-quality chrome-plated brass heating block, it is heat-, wear- and -. Filament Material: for A1 Mini print is suitable for 1.75mm PLA/ABS/PETG/TPU/wood filament. Simple installation: remove the old hot end and install the new hot end to start. Note: This repair kit is only compatible with for A1 Mini and for A1 3D printers. Due to different shipping batches, there are slight differences and color differences in the actual appearance, which does not affect the use. The wrench style and color in the picture are sent randomly,Specified colors and styles are not accepted Colour:Black Material:Hardened Steel Brass Package Contents: 1set x 3D printing extruder nozzle(The style and color of the wrench are random, no specified style is accepted) 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.