Decorative hand-painted pen: a complete drawing tool set that is easy to carry and store, designed for model painting work. Modeling pen: specifically tailored for modeling enthusiasts, helping you achieve meticulous and fine drawing outcomes as a painting tool. Permeation pen: smudge-resistant and non-permeable, preserving the clarity and integrity of artwork during erasing, suitable as a model painting pen. Panel liner: portable and compact drawing tool set, facilitating easy transportation and storage, ideal as a handicraft pen. Applications - Detailing scale models and miniatures where precision and control are required. - On-the-go drawing or painting in studios, workshops, or exhibitions due to compact size and portability. - Panel lining and finishing in crafts and model painting projects, with clear erasing and line definition.