Durable tip, clicker & barrel, for precise writing in a clean room environment, where the prevention of chemical exportation and particle contamination is critical

The non-toxic ink of each Felt Tip Marker is waterproof and smear and fade-resistant, for archival quality. Durable tip for precise writing in a clean room environment, WHERE THE PREVENTION OF CHEMICAL EXPORTATION AND PARTICLE CONTAMINATION IS CRITICAL. The pen body is manufactured from a…