This product is an adjustable tool pen made of plastic and iron materials. It is mainly suitable for drawing straight lines and can help you create beautiful straight lines. It is suitable for professional and personal to use. This tool is designed to enhance the drawing and drafting experience for artists of all levels, providing them with a reliable and efficient way to create their artwork. Features -Color:Dark Green -Material:Plastic, iron -Size:12.00X0.60X0.60cm/4.72X0.24X0.24in - Precision art ruling pens for masking fluid lines ink drawing tools. The versatile tool can be used for various art techniques. - This ruling pen set is designed for lines drawing, technical drawing, and calligraphy. - This pen is ideal for professional use and outdoor sketching, making it a versatile tool for artists who need to create their artwork in a variety of settings. - An gift worth giving to your friends, boss, colleagues, and so on. - Comfortable grip for better painting and drawing, suitable for students and artists. Package list: 4 x pens