Box of 100 black Bic M10 Clic ballpoint pens with black ink. The Bic M10 ballpoint pen is the most commonly used pen. Bic pens are affordable and have good writing properties. The pen features a side push mechanism and a tip thickness of 1.0 mm for a standard line width. The Bic M10 has a writing length of 1.7 km and writes up to twice as long as other conventional click ballpoint pens. The pen has a plastic barrel and clip and is free from PVC and heavy metals. Bic pens comply with the ISO 12757-2 standard.