Specifications: stainless steel ruler: length 33 cm, width 2.7 cm + brass plug. Easy to use: the brass positioning block can be placed in the desired position, then just tighten the screws, easy to use. Can be used on all types of steel ruler. With the steel ruler, all measuring work on a measuring range of 0 - 30 cm with high accuracy are possible. DOUBLE SCALE - The woodworking marking tool is marked at the front with 2 different scales, centimetres and back with inches and can meet different measurement standards. Material: office ruler is made of durable unbendable stainless steel, but a little flexible, good for durable use; the markings are embedded into the metal, so they will not rub off over time. Perfect combination: positioning block parallel ruler for woodworking scale, marking gauge with a stainless steel ruler, brass stop. Measurable time savings by conveniently transferring dimensions. the highest precision. NOTE 1. The size of the product is measured manually, and there will be an error of 2-3mm due to factors such as different measurement tools and measurement methods. 2. This product is all taken in kind, but due to differences in photography, lighting, color deviation, and personal understanding of color. As a result, there may be some color difference between the actual product and the photo, and the color is subject to the actual product. 3. Please take good care of our products