Genuine product imported from Japan - please excuse the variable English Translation - full original Japanese text is included below.
Sharp extra lead using the high-purity graphite (black lead)
Because there are extremely few impurities, there is not a catch and is smooth. Because a bond of carbon is strong, a core is hard to collapse, and the hand is hard to become dirty, too. Clear handwriting thick black which high-purity black lead produces.
Mechanical pencil extra lead
A core: Super high-purity graphite core
Core diameter: 0.5mm
The hardness: B
A core colour: Black
An order unit: Nothing (40)
Green purchase method conformity
GPN Eco product publication
On account of the maker, a package, the specifications may be changed without a notice.
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HRF5G-20-B HRF5G20B for 05mm for PILOT neox GRAPHITE extra lead mechanical pencil extra lead sharp extra lead refill sharp core extra lead mechanical pencil core 0.5mm