Caran d'Ache 3.8 mm Water Soluable Graphite Lead - 3B Caran d'Ache from $2.75 $2.75 Qty. Out of Stock SKU: CD6379-253 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. The Caran d'Ache Museum 3.8 lead refill fits the Caran d'Ache Fixpencil holder. Sold individually. Tweet