Ballpoint pen Staedtler triplus ball 437 – black ink, 1 piece

Staedtler triplus ball 437 is a black-ink ballpoint pen supplied as a single piece and designed for everyday writing tasks. The pen combines an ergonomic triangular barrel with a lightweight design for comfortable handling during extended use. It features a broad line width (XB) and a specially formulated ink that provides smooth, consistent flow for notes, forms and documents. The construction includes automatic pressure equalization that makes the pen airplane safe, reducing the risk of leaks at altitude.

Advantages

The triangular shape supports a relaxed grip and promotes correct finger positioning, helping to reduce hand fatigue during prolonged writing sessions. The broad XB line produces dark, easily legible strokes while the smooth ink formulation ensures reliable writing start and continuity. The pen’s lightweight construction and single-piece supply make it convenient for office, school and home use, and pressure-equalization technology prevents ink leakage in changing air pressure environments.

Suitable for

• Everyday note-taking and journaling
• Completing forms and signing documents
• Schoolwork and classroom tasks
• Office writing and administrative tasks

Key specifications

• Ink colour: black
• Line width: extra broad (XB)
• Barrel shape: ergonomic triangular
• Supply: single piece
• Special feature: automatic pressure equalization (airplane safe)
• Weight category: lightweight pen

How to use

Remove the cap and hold the pen in a relaxed tripod grip with the triangular barrel supported between the fingers. Apply gentle, even pressure while writing to allow the smooth ink to flow consistently across paper. Replace the cap after use to prevent the tip from drying out. For the best results, use on standard office paper and avoid pressing excessively hard to maintain tip life and consistent line quality.

Usage recommendations

Store the pen horizontally or with the tip down for immediate writing readiness. For travel, keep the cap securely closed to maintain the airline-safe pressure balance and avoid exposing the pen to extreme temperatures.