The Metacil pencil is a metal pencil with an erasable and writable lead. It is designed for smooth writing and easy erasing, making it perfect for various applications. The pencil features a special alloy lead, an aluminum body, and an octagonal shaft. The lead is made of a special alloy containing graphite, which creates a writing trail when friction occurs with the paper. With minimal lead wear, you can write for a long time without the need for sharpening.