Pentel Ain STEIN 0.5mm B Lead Refills, 3 Sets Mechanical Pencil Lead Refills With Black Eraser - Brand: Pentel - Model: Ain STEIN - Lead Diameter: 0.5mm - Hardness: B - Quantity: 3 sets I used a few leads from one set. Please refrain from purchasing if you are concerned. No price reduction. There may be individual differences or initial scratches. Please understand and confirm everything before purchasing. Returns, cancellations, and claims are not accepted after purchase.