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About 10% stronger than any other Pentel refill lead thanks to a ceramic cell structure Supplied in easy to dispense tubes Smoother than other refill leads on the market Suitable for all 0.5mm mechanical pencils HB grade lead
About 10% stronger than any other Pentel refill lead thanks to a ceramic cell structure Supplied in easy to dispense tubes Smoother than other refill leads on the market Suitable for all 0.5mm mechanical pencils HB grade lead