Pentel 0.5 HB Ain uni 0.5 3B and 4B NanoDia KOKUYO 0.7 2B Campus Set of 4 mechanical pencil leads The three sets on the right are unused and unopened (with the seal intact). The one set on the left is unused (I'm not sure if it was opened because there's no seal). They were stored in a writing utensil box at home, and there may be minor scratches on the cases that don't show up in the photos, so please be aware of this before purchasing. - Brand: Pentel, uni, KOKUYO - Lead diameter: 0.5mm, 0.7mm - Hardness: HB, 3B, 4B, 2B - Quantity: 40 leads x 4 sets Thank you for looking.