Enjoy the comfort of a pencil with the convenience of a ballpoint—the TROIKA CONSTRUCTION BASIC ballpoint pen is designed for professionals who demand more from their writing tools. With a sleek, six-sided aluminum barrel, this pen offers ergonomic comfort and precision handling, making it ideal for everything from sketching to note-taking. Engineered for multitasking, it features integrated centimeter and inch rulers along with 1:20 and 1:50 scale markings—perfect for architects, designers, and engineers. The twist-action mechanism protects the tip when not in use, while the smooth black D1 medium refill delivers crisp lines for all-day writing ease. Choose from a range of bold colors to match your style or workspace. Whether you're in the office, on a job site, or sketching in the studio, the CONSTRUCTION BASIC pen is a functional, stylish companion ready for anything. Multifunctional Tool – Combines a retractable ballpoint pen with built-in measurement tools for practical, everyday use. Smooth Writing Experience – Uses a black D1 medium refill (replaceable); provides clean, reliable lines for professional results. Integrated Rulers & Scales – Includes centimeter/inch rulers plus 1:20 and 1:50 scales, ideal for technical and creative work. Premium Build Quality – Constructed from durable aluminum and metal for a sleek, professional feel. Ergonomic Design – Hexagonal barrel shape offers enhanced grip and comfort, similar to a traditional drafting pencil. Stylish Color Options – Available in black, dark blue, red, yellow, neon orange, and silver. Great Gift Idea – A unique and functional gift for architects, engineers, designers, contractors, and students. Color Blue Style Retractable Ink Base Oil Grip Type Contoured Ink Color Black Line Size 0.7mm Brand Name Troika Model Name Construction Basic Unit Count 1.0 Count Drill Point Medium Item Weight 29 Grams Manufacturer Troika Model Number TRO PES40-DB Item Diameter 10 Millimeters Material Type Aluminum, Metal Item Dimensions 0.39 x 0.39 x 5.91 inches Hand Orientation Ambidextrous Additional Features Ergonomic, Ruler, Twist-Cap Age Range Description Adult Water Resistance Level Not Water Resistant Writing Instrument Form Ballpoint Pen Recommended Uses For Product Writing