Specifications: Stainless steel ruler: length 33 cm, width 2.7 cm + brass stopper. Easy to use: the brass positioning block can be placed in the desired position, then just tighten the screws, easy to use. Applicable to all types of steel ruler With the steel ruler, all measurement work can be carried out within the measuring range of 0-30 cm with high accuracy. Double scale - the woodworking marking measuring tool is marked with 2 different scales, centimeters on the front and inches on the back, and can meet different measuring standards. Material: ruler Desktop is made of stainless steel which is durable and inflexible, but somewhat flexible, good for long time use; The markings are lightly embedded in the metal so they won't fade over time. Perfect Match: Positioning Block, Parallel Ruler for Woodworking, Ruler, Ruler Marking Gauge in stainless steel, brass cap. Measurable time savings with convenient dimension transfer. of the highest precision.