This is the tip for the S20 mechanical pencil. I am selling this as a replacement because they sometimes break. I bought a lucky bag at a stationery store's closing sale, and it contained quite a lot of items. I can't use them all myself, so I'm selling them to those who need them. - Brand: PILOT - Model: For S20 - Size: 0.5mm - Quantity: 1 Thank you for looking.