The clear plastic 12" / 30.5cm ruler is scaled in 1/16" increments on one side and 1mm increments on the other side. The clear plastic 6" / 15cm ruler is scaled in 1mm increments on one side.
The clear plastic 12" / 30.5cm ruler is scaled in 1/16" increments on one side and 1mm increments on the other side. The clear plastic 6" / 15cm ruler is scaled in 1mm increments on one side.