Features: Engineered with a concealed dowel pin and multi functional design, this plastic carpenter's triangle ruler delivers precise marking and measurement for woodworking projects, combining durability with lightweight ABS materials. Features fade resistant graduations and ergonomic contouring to ensures accurate readings and comfortable grip during extended use in workshops or outdoor environments. Ideal for professional carpentry, diyer enthusiasts, and educational settings requiring reliabled angled calculation in furniture assembly, craft creation, or technical drawing classes. Perfectly adapts to complex measurement tasks in cabinetry, home renovations, or school STEM labs, where two scale markings enhances versatility. The integrated locking mechanism stabilizes measurements on uneven surfaces, while the shatter resistant plastic construction, making it a must have woodworking precise tool for craftsmen prioritizing efficiency. Specifications: Component: plastic Size:Approx.112x84x79mm/4.4x3.3x3.11inch Color:Black/Blue/Red Package Includes: 1 Set Triangle Ruler note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.