Specifications:

Color: Black

Material: Special material

Size: 5.11 x 0.27 x 0.23 inches each

Adjustable line width: Screw mechanism for varied line thickness

Compatible media: Ink, gouache, acrylic, masking fluid

Ergonomic design for comfortable handling

Overview:
This 3-piece adjustable ruling pen set allows artists, designers, and hobbyists to create precise lines, borders, and details with ink, gouache, acrylic, or masking fluid. Each pen (S-M-L) features an adjustable screw mechanism to control line width, providing flexibility that single pens cannot match.

FAQ:
Q: How is this better than other ruling pens?
A: Competitor pens often slip, misalign, or offer limited line adjustment. Our pens feature a precision screw mechanism and special material construction, ensuring smooth, consistent lines without hand fatigue.

Q: Can these pens be used for multiple art forms?
A: Yes, they are suitable for calligraphy, cartography, technical drawing, comics, watercolor, and mixed media, making them versatile for both professional and hobbyist use.

Q: Are they easy to clean and maintain?
A: Absolutely. The special material allows for easy cleaning after use with ink, gouache, acrylic, or masking fluid, keeping the nib in consistent working condition.