Specification: Material: Brass, Stainless Steel Brass Locating Block: 40mm x 20mm x 10mm Stainless Steel Ruler: 330mm x 27mm Steel ruler measuring range: 0-30cm Weight: 150g Package Including: 1 x Woodworking Positioning Block Product Description: Specifications: Stainless steel ruler: length 33 cm, width 2.7 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. 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: The desk ruler is made of durable stainless steel and inflexible, but a little flexible, good for long time use; The marks are a little embedded in the metal so they won't fade over time. Perfect combination: positioning block, parallel ruler for woodworking, ruler, marking gauge with a stainless steel ruler , brass stopper. Measurable time savings with convenient dimension transfer. of the highest precision. Features: 1. Made of brass and stainless steel, rustproof, durable and sturdy. 2. Clear metric and imperial graduations up to 300mm 3. Simple tracing tool, bring it to the desired position and tighten the screws. 4. All-match line finder for woodworking, suitable for a variety of steel rules and not easy to slip. 5. Suitable for carpenters and individuals for a wide variety of uses.