Specifications: Stainless steel ruler: length 30 cm, + brass stopper. Easy to use: the brass positioning block can be put in the position you want, then just tighten the screws, easy to use. Applicable to all kinds of steel rulers With the steel ruler, all measuring work can be done within the measuring range of 0-30cm with high accuracy. < p>Double scale: The woodworking marking tool is marked with 2 different scales, centimeters on the front and inches on the back, and can meet different measurement standards. Material: ruler desktop is made of stainless steel which is durable and inflexible, but somewhat flexible, good for long time use; The marks are a bit embedded in the metal so they won't fade over time. Perfect combination: positioning block, parallel rule for woodworking, ruler, gauge marking with a stainless steel ruler, brass stopper. Measurable time savings with convenient dimension transfer. of the highest precision. The size is measured manually, please allow the error (1-3 cm). < p>Due to different monitor pixels, there may be color difference, please refer to the actual product. Note: The data is all manual measurement, please allow 1 error - 3cm, due to the difference in light and display, there will be a certain color difference, depending on the physical object received Delivery quantity: (according to the main picture)