Quick view Caran D'Ache Caran D'Ache RNX.316 Black PVD - Mechanical Pencil Now: $544.95 MSRP: Was: When Fine Writing instruments adopt high technology the result is the birth of an unique collection: RNX.316.In its name, RDX indicates its combination of two body shapes: Round aNd heXagonal. These are emblematic of the Caran d'A… Add to Cart The item has been added Add To Compare