The Beadsmith Ulitmate Folding Ruler 12"

"Each link in this cleverly designed ruler measures one inch. Made of durable plastic, it can be laid flat, wrapped around an object, or folded into a cube for compact portability! When completely folded together, it measures only 1.5"" x 1.5"" x 1"". Measurements are given in both inches and centimeters. Assorted colours.