The pilot Sharp replacement rubber [10 boxes] HERF-10 (H rubber -10) Size: diameter 4.9mm 5 pcs per Pack, 10 Packs (Total 50 pcs) Mechanical Pencil Eraser Refill for CUSTOM Serie, Grance Series, Automac, Cavalier, Capless, Lucina, CLUTCH POINT, COCOON, Coupe, Just Meet Series, 2020, Dr.Grip Series, couleur, S5