Pentel Pencil Leads 0.3 B

Brepen

Super hi-polymer markers 0.3 mm. Available in different hardnesses, B, H, HB and 2H. Material is a mixture of synthetic resin,graphite and carbon. Very dense structure ensures a deep black line and exact line thickness. Supple and break-resistant. Length 60mm. Tube with 12 pieces

Amazon

Smoother than other refill leads on the market Made from 92% recycled material Features a ceramic cell structure