High Polymer 100 0.5mm 2B - 4 boxes High Polymer 100 0.5mm B - 2 boxes High Polymer 100 0.5mm F - 2 boxes Total: 8 boxes in a set. Individual sales are possible, but priority will be given to those who purchase the entire 8-box set. Thank you for your understanding. Each box contains 10 cases. Each case is unopened, so the number of leads has not been confirmed. There may be different lot numbers. Please be aware of this. If you have any questions, please ask in the comments and I will answer. Thank you for your consideration. ※ Discontinued High Polymer For Pro 100 Mechanical Pencil Lead for pro