Uni Nano Dia pencil lead is a new technologically advanced pencil lead that is super tough with a smooth crisp finish. Nano Dia lead takes its name from the 400 million nano diamonds which the pencil lead is constructed from that gives it the strength.
This is combined with a new high viscosity silicon oil compound for enhanced smoothness and a deeper black colour. Nano Dia pencil lead is supplied in tubes of forty 0.7mm leads and a choice of 2B, B & HB grades.
Feefo Reviews - Average 100% (1 reviews)
Date Score Customer Comment Our Response 27-Feb-2017 Product:
O.K, but for an HB lead seemed to require more pressure than usual to get a dense line. Read more reviews on Feefo