Pencil Leads to fit a wide range of mechanical pencils. .5mm pencil leads are the most common but if you are not sure send us a piece of lead from your pencil and we will tell you what size it is. Send to Justwrite Pen Co, 7 Hill St, Blackstone 4304. Include your email address, so we can reply.
2B pencil leads are the most popular because they are softer than HB and tend to be more break resistant and write smoother and darker.