Features: High precise Woodworking edges Ruler with ±0.2mm accuracy, crafted from durability stainless steel to eliminate measurement errors in curves surfaces for professional carpentry and projects. Features corrosions resistant stainless steel construction, ergonomic grip, and clear markings for effortless curves tracing and long last performances in demanding workshop environments. Ideal for woodworkers, cabinet makers, and enthusiasts requiring reliability measurements for furniture assembly, architectural modeling, or intricate craft projects. Perfect for curves edges marking on tabletops, templates, and circular patterns in woodshops, construction sites, or home renovation scenarios. This multi functional measuring tool combines arcs calculation, straight edges alignment, and portable lightweight design to streamlines complex layout tasks across woodworking and construction applications. Specifications: Component: Stainless Steel Option Type:10in,15in,20in Multiple Size as Picture Show; Technology: marking Accuracy ±0.2mm Feature: high wear resistance and corrosions resistance Usage scenario:Carpentry Surveying,Building Construction,Interior Decoration,Model making,handicrafts; Package Includes: 1pc angles Ruler note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.