An icon cannot be improved on, only developed further. Designers refer to this as ‘evolution’. In the case of the DS3.1, the clip has been enlarged and the twist mechanism redeveloped. Its predecessor is, however, still clearly recognisable.

Refillable twist ball pen with high-quality Floating Ball®, TechGlide® or SuperDry® Gel jumbo refills. 21 standard colours in frosted, transparent and full-color polished. Special body surface colours available from 10,000 writing instruments. Optional chrome or satin finish metal nose cone. Four print areas.