The diameter of the pen shaft for the Uni Posca 3M marker, the component grasped during use, is approximately 15.3 millimeters. This measurement is crucial for understanding the pen’s ergonomics and compatibility with various pen holders or storage solutions. The shaft houses the internal mechanisms that deliver the paint.
This dimension impacts user comfort and control. A shaft diameter optimized for a wide range of hand sizes promotes prolonged use without fatigue. The design allows artists and crafters to work for extended periods, creating intricate designs with consistent application. The size also is a factor in packaging and retail display considerations for the pen.
