Introducing the Uni-ball Kuru Toga collaboration with Sanrio limited edition mechanical pencil! The pen body is printed with the cute Little Twin Stars image and made of Polycarbonate material. It is a revolutionary retractable lead pencil that is famous for its lead rotation mechanism. It means the lead rotates a millimeter every time you lift the lead off the paper as you write. The benefit is that it is less likely to crumble or break and guarantees a constant line width. Additionally, the lead holds its sharpness and turns, making it easier to create letters that are not too thick. The sleek pen body and knurled metal grip are a nice touch. It's ideal for taking notes, finishing math assignments, and keeping around the house.