A ruler showing the numbers 1 through 11 with some sort of tool next to it.
A metal ruler shows numbers 1 through 11 mm.
A piece of rubber is on an orange table by a ruler that is marked with numbers 1 through 11.
A mechanical object that is shown to be approximately 8 centimeters in length
A white flat ruler with increments in millimeters and numbers from one to eleven centimeters is above some type of part.