Durable Material: These ruling pens feature a metal nib with a green plastic handle, ideal for drawing fine, precise lines with paint, ink, or masking fluid. The glue and residue eraser is made of rubber, which is safe and durable for use. The erasers are elastic and resistant to breaking after repeated use. Non-toxic materials ensure safe handling. Easy to Use: These masking fluid pens allow easy adjustment to various line widths with precision. Each adhesive removal eraser helps conveniently remove most adhesive residues. Function: The adhesive removal eraser effectively removes adhesives and residues from paper, plastic, and other surfaces. Suitable for school, home, and office use. Ideal for cleaning watercolor, sketching, glass, plastic, leather, and boards. Ruling pens are traditionally designed tools that apply lines using ink, paint, or any liquid medium with suitable viscosity. Package Includes: 4 glue residue erasers and 1 art ruling pen, 5 pieces total, providing sufficient supply for various cleaning and artistic needs. Material: Metal + Rubber Color: Yellow Package Contents: 4 x Glue Residue Eraser 1 x Art Ruling Pen Note: Light shooting and different displays may cause slight color variations between the image and the actual item. Measurement error is +/- 1-3 cm.