Folding ruler folds in half to fit into any tool box or pencil pouch. Engineered hinge allows straight, non-kink lines. Easy-to-read markings on the ruler are printed using an eco-friendly printing process instead of acid etching. Imperial markings are in 1/16" increments, & metric markings are in millimeters. 12" (30cm) ruler is made of stainless steel & features a cork backing for nonslip grip. More from the Manufacturer