In its name, RDX indicates its combination of two body shapes: Round aNd heXagonal. These are emblematic of the Caran d'Ache collections _ easy to hold in the fingers for precise control handwriting _ in a new design that is immediately appealing 316 refers to its stainless steel, a strong corrosion-resistant material that is enhanced by a pure, polished finish to give Fine Writing instruments an elegance that will last a lifetime.The RNX.316 incorporates the latest technical development in Caran d'Ache expertise, making it one of the most distinctly modern of all writing instruments.In the PVD technique, the ceramic is applied by a physical vapor deposition process which gives it optimal adherence; a cutting-edge technique for these pens that, with their laser engraving demonstrate innovation across the whole line.
Stainless Steel with black PVD Ceramic coating
Smooth and quiet push down click mechanism
Standard Caran d'Ache Ballpoint Refill
Caran d'Ache no. 4580.080