Alvin Erasing Shield No 3298 Stainless Steel 26 Apertures Drafting Drawing. Condition is new, factory sealed. Made from high-quality stainless steel, this tool is flexible and lightweight. It features 26 apertures of different shapes and sizes for precise and controlled erasing. Helps to protect the other sections from being erased. It can also serve as a template for drawing sharp corners or edges. Suitable for drawing, architecture, and drafting. Great for professionals, students, & hobbyists. Made in Taiwan size: 5.50″x2.75″