VBSYUYQ 2PCS Green Ruling Pen for Masking Fluid, Adjustable Fine Line Art Ruling Pen for Technical Drawing Cartography Calligraphy Ink Gouache Watercolor

• Precise Adjustable Line Width: Features a side screw adjuster for accurate line thickness control (minimum 0.3mm), perfect for drawing ultra-fine lines, technical drafting, cartography, calligraphy and detailed illustration work.
• Wide Medium Compatibility: Works seamlessly with masking fluid, drawing ink, gouache, watercolor paints and other liquid art materials. Important: This is a dip-style pen, does NOT include any ink or fluid. An essential tool for watercolor masking, fine outlining and professional mapping.
• Durable Premium Construction: High-quality Metal nib is rust-resistant, sturdy and easy to clean, delivering smooth and precise strokes. The ergonomic green plastic barrel provides a comfortable grip for extended use.
• Easy & Intuitive to Use: No complicated setup required—simply adjust to your desired line width, dip the nib in your chosen medium and draw. Suitable for both amateur art enthusiasts and professional draftsmen.
• Value 2-Pack Set: Includes 2 green ruling pens, each measuring 12.3cm in length. The ample quantity meets all your daily creative and professional drawing needs, ideal for studio and home use.

Critical Note: This is a dip-style ruling pen set, it does NOT come with any ink, masking fluid or paint. All liquid art materials need to be purchased separately. Whether you're creating detailed watercolor paintings, technical drawings, maps or calligraphy pieces, this versatile pen delivers consistent, accurate results across a wide range of art mediums. Crafted with a high-quality Metal nib, this ruling pen offers exceptional durability and rust resistance. The smooth metal surface ensures clean, uninterrupted strokes and is easy to clean between uses, preventing medium buildup and maintaining optimal performance. The ergonomically designed green plastic barrel fits comfortably in your hand, reducing fatigue during long drawing sessions and providing excellent control over your lines. The standout feature of this pen is its adjustable line width mechanism. A simple screw on the side allows you to precisely control the gap between the nibs, enabling you to draw lines ranging from ultra-fine 0.3mm details to thicker outlines. This versatility eliminates the need for multiple fixed-width pens, making it a space-saving and cost-effective addition to your art supplies.