A complete set with everything you need to adapt different parts and customize your models! (ideal for HG and MG)The quality of the details makes the most of the potential of 3D resin printing!The cylindrical pins with a diameter of 3mm, are 3mm long, and are compatible with most of the most famous series.In addition, the models are designed to be scaled by 133.3% to obtain 4x4mm pins, 166.6% for 5x5mm pins, and 200% for 6x6mm pins! there are also converters of 4, 5, 6mm.The set also includes customizable robotic arms!all file is .stl, i have tested with Elegoo Mars 2 abs-like resin.