Eco-friendly plastic ruler offers antimicrobial protection and is made from 70 percent recycled material. Built-in antimicrobial technology, Microban protection provides an added level of cleanliness by preventing bacteria that can cause stains and odors. Microban protection never wears off. Ideal for shared/common areas such as office, classroom and breakroom. Measurements are in 1/16" and centimeters. Ruler also features a wood inlay, double bevel with pencil groove, and hanging hole.