TecFlex is a cable sheath woven from stainless steel used by the Porsche Le Mans team to shield sensitive electronic connections from heat and mechanical stress. Needless to say TecFlex is extreamly hard wearing.
The Porsche Design TecFlex rollerball pen, fountain pen, ball pen and mechanical pencil are available in two fine metals: Stainless steel or stainless steel with fine gold threads in the weave.
All the writing instruments in the P'3110 range accept standard refill types.