rOtring Isograph High-Precision Technical College Set - 0.25mm,0.35mm,0.50mmThe Rotring Isograph Technical Drawing Pen is a high-precision technical pen designed to provide you with flawless lines. With its ergonomic barrel, the Isograph pen achieves an ideal weight balance, allowing you to work for long hours without discomfort or fatigue. The wear-resistant hard chrome-plated thin tip is perfect for exquisite detail work in drawing, drafting, and technical writing on a variety of surfaces--including line board, tracing paper, and vellum. No matter what you're working on, the superior design and high-quality construction of the Isograph pen enable you to be technically perfect, every time.Features:3 pen set of high precision technical pens with refillable ink reservoirs is perfect for College level studentsThe wear-resistant, hard chrome-plated thin tip allows exquisite detail work. The nib is crafted from stainless steelPush on sleeve provides easy access to ink helix and fast cleaning. The colour-coded barrel indicates line widthA refillable ink reservoir is ideal for frequent drawers. Fill from ink bottles available in multiple colours. Ink not includedThe wear-resistant, hard chrome-plated thin tip allows exquisite detail work. The nib is crafted from stainless steel. Not for any use on skin, including tattoosSpecifics:Color BrownMaterial Type Stainless steelColour: MulticolourClosure: RetractablePackage contains: 1 pack of Isograph High-Precision Technical College Set