The art ruling pen tools can provide you with create beautiful straight lines to meet your professional painting needs. With these pens, you can be creative and creative and draw beautiful designs. A precision drawing and drafting tool with an adjustable design, perfect for creating straight lines and precise artwork. Features -Color:Green -Material:Plastic, Iron -Size:14.50X1.00X0.50cm/5.70X0.39X0.20in -Size:13.50X1.00X0.80cm/5.31X0.39X0.31in - The pen tip is durable and wear-resistant, which is not easy to wear and break. - The handle is using an ergonomic handle, which is comfortable and easy to hold and operate. - Adjustable design, you can adjust the tightness according to your drawing requirements. - It is very suitable for ruling lines and drawing with ink or other drawing liquid or thin paint. - The drawing pen is specially designed for line drawing, professional and practical, which can well meet your needs. Package list: 4 x Ruling Pens