6-Piece Precision Erasing Shield Set: This comprehensive kit includes three 26-hole and three 23-hole stainless steel erasing , offering versatile options for detailed drafting. Cater to different project needs, from fine technical drawings to sketches, ensuring you always have the right tool for precise . Engineered for Accuracy in Mechanical Drawing: Each eraser shield template features 26 or 23 precision-cut apertures, including circles, curves, and straight edges. Perfect for architects and engineers, these tools allow targeted erasing of specific areas without disturbing surrounding lines, ideal for blueprints or intricate artwork. Multi-Disciplinary Applications: Beyond engineering drawings, these excel in comic inking, calligraphy, and graphic design. The smooth edges prevent paper tears, while the reusable stainless steel templates maintain sharpness over time, superior to flimsy plastic alternatives. Professional-Grade Stainless Steel Construction: Crafted from stainless steel, these drafting tools resist bending, rust, and wear, even with frequent use. The ultra-thin yet design creates crisp edges while remaining flexible enough for controlled, smudge-free erasing. Portable & User-Friendly Design: The metal eraser fit easily into pencil cases or drafting kits. Their compact size ensures comfortable handling for students and professionals alike, whether in the studio, classroom, or on-site. Color:As Shown Material:Stainless Steel Package Contents: 6 * Precision Erasing Shield Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.