limited to 1000 copies

it works perfectly for clean lines

and duotip markers

which means the eraser itself doesn't show grey graphite smudging the way a white block does after repeated use

and figure study

caran dache technograph 3 mm leads 6 pack Lead Grade:HB limited to 1000 copiesThe Caran d'Ache Technograph 3mm refill leads are premium replacement graphite leads for the Fixpencil 3mm clutch pencil and any standard 3mm lead holder. Each lead is formulated with high density extra pure refined Swiss graphite, engineered to minimize crumbling while delivering consistent, uniform line quality from first stroke to last. The extra thick 3mm diameter provides strong break resistance under sustained drawing pressure and produces a