Alumicolor aluminum 6" pocket ruler is made from high quality extruded aluminum with ultra- smooth edges and is about the size of a ball point pen. The pen-size, light weight design provides professionals and students with a scale that can be taken anywhere. This handy 3-sided scale is an accurate and functional tool that has a quick fraction to decimal reference chart, edge aligned or center-spaced 15CM/6IN calibrations for versatility in measuring that will be treasured and used for many years. Available in 7 bright, fun colors!