Features: This art ruling pen is made from quality metal, durable and rust-proof. Duckbill designed, sharp and easy to use. Precise art ruling pen straight line drawing pen for covering fluid fine line ink drawing tools. The duck bill drawing pen is designed for fine line drawing, technical drawing, straight line drawing and calligraphy. There is an adjustable screw on the side, so you can change the length of line. Each adhesive remove eraser can help you to remove most adhesive residues conveniently. Suitable for grass, twigs, ropes, and can also be used to make fine lines and border in Indian ink, gouache, drawing ink and art masking liquid. Specifications: Color: Green Material: Metal Type: Set 1; Set 2; Set 3 Pen Size: Approx. 12cm/4.72in Weight: Approx. 80g-310g Package Includes: Package Option Package 1: 1 Piece Ruling Pen Package 2: 1 Set Ruling Pens with Residues Eraser note: 1.Please allow 0-1cm error due to manual measurement. make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you