This multi-angle measuring ruler is crafted from durable aluminum alloy, offering high hardness, lightweight design, corrosion resistance, and rust protection. Two scaled rulers are joined, creating a versatile measuring tool. The smallest increment is mm, with a total scale of 112mm (4.4 inches). The ruler body is thickened for added strength and durability. It's multi-functional, usable for marking, measuring 45 and 90-degree angles, and easily disassembled for convenient portability. The anodized surface ensures high surface hardness and wear resistance, maintaining accuracy over time. It functions as a carpenter's square and measuring tool, simplifying tasks such as measuring, correcting, and marking. Ideal for DIY enthusiasts, engineers, and decorators, this is an essential tool for woodworking professionals. Perfect for measuring round materials, three-dimensional workpieces, square wood, pipes, and more. Makes a great gift for any DIY aficionado. Color: Black Material: Aluminum Alloy Package Contents: 1 x Multi-Angle Measuring Ruler 2 x Hexagon Screws 1 x Hex Key Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowable measurement error is +/- 1-3cm.