• Drawing a line with a conventional ruler is inaccurate when you are looking from the side. Well, Pro Ruler has micro-fine marking holes that let you mark your measurement accurately.

LOCATE YOUR PENCIL POINT EXACTLY ON TARGET

• Select the proper slits or tiny holes, insert a mechanical pencil and mark the measurement instantly with dead-on accuracy.

ELIMINATE MINOR PARALLAX ERROR

• It has small holes on it, so you don't have to mark your points at the side of the ruler, which causes inaccurate marking.

FAST & CONVENIENT

• Marking precise points is just that simple with Marking Ruler. Its unique design makes it very easy and convenient for you.