PAPERMATE MECHANICAL PENCIL NO FURTHER A MYSTERY

an average development of the ratchet-primarily based mechanical pencil A mechanical pencil or clutch pencil is often a pencil using a replaceable and mechanically extendable good pigment core named a "lead" /ˈlɛd/. Hexagonal or triangular barrel shape: Hexagonal pencils (or semi-hex, which have a bit rounded corners) are relatively ubiquitous,