Penna a sfera multifunzione TROIKA CONSTRUCTION BASIC nero blu

The TROIKA CONSTRUCTION BASIC multifunction ballpoint pen combines practical design with robust materials. It features a matt aluminium and metal body in blue with a compact size (150 mm length, 10 mm width/depth) and a black D1 refill for consistent, long writing. The pen integrates a centimetre/inch ruler and 1:20 and 1:50 scales in the typical CONSTRUCTION look, making it a handy, durable tool for precise everyday tasks.

Advantages

The CONSTRUCTION BASIC offers multiple functions in a single pen: a smooth black D1 refill with easy front-part refill change, integrated metric and imperial rulers, and two architectural scales (1:20 and 1:50). Its matt aluminium/metal construction delivers durability while keeping the weight low (0.02 kg), and its compact shape fits pockets, pencil cases or travel kits.

Suitable for

Key specifications

How to use

Use the pen as a standard ballpoint instrument for writing and sketching. For measurements and scaled sketches, align the integrated centimetre/inch ruler or the 1:20 and 1:50 scales with the drawing or object. To replace the refill, pull out the front part of the pen to remove the D1 refill and insert a compatible D1 refill, then reassemble the front part.

Recommendations

For accurate scaled sketches hold the pen steady and place the appropriate scale (1:20 or 1:50) directly on the drawing surface. Store the pen capped or in a pocket to protect the tip and prolong refill life.