Features: Achieve professional accuracy with this double function marking tool, featuring scale for ±0.5mm accuracy in both straight lines and arcs from 3cm to 30cm perfect for woodworking projects demanding exact measurements. Crafted from aircraft aluminum alloy and reinforced polymer, this strong woodworking combines lightweight portability (800g) with 50% enhanced wear resistance compared to standard plastic tools. Ideal for both enthusiasts crafting home furniture and professional joiner creating wood pieces, offering ergonomic comfort during extended workshop event . simplify your workflow in workshops or site with quick switches functionality between parallel line drafting and circular marking modes, eliminating tool changes for curved cabinet doors or straight edges joinery. The foldable accuracy marking tool stores compactly in toolboxes while maintaining calibration integrity, making it essential for mobile contractors and space conscious hobbyists alike. Specifications: Component : aluminum alloy, 40CR Size: about 15.8x23.5cm/6.22x9.25inch Package Includes: 1 set Line Scriber note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.