BIC Break Resistant Lead Refills, 0.7 mm, HB, Black, 6 Leads/Tube, 6 Tubes/Pack (LMV7PR42AST)

Enjoy a smooth, uninterrupted writing experience, thanks to the extra strong lead. 75% stronger lead means less breakage, so you can write with less time spent clicking for more lead. Avoid the frustration of flimsy lead that snaps easily and requires constant replacement. Pencil Lead Format: Tube; Lead Diameter: 0.7 mm; Lead Degree (Hardness): HB; Lead Color: Black.