1. ACCURATE MEASUREMENT: This woodworking right-angle ruler has clear, easy-to-read scales to accurate measurements every time. 2. AND CONVENIENT: The triangle ruler is made of aluminum alloy to durability. The multifunctional design makes measuring easier without having to rotate the ruler. 3. SPACE SAVING: The wide base of this measuring tape can be used to measure the height of a woodworking table saw, and can be easily hung and stored when not in use, saving valuable workspace. 4. SMOOTH & SAFE: The woodworking ruler is polished and smooth to the touch, safe to handle and 't cause any injury. 5. MULTIPURPOSE TOOL: This measuring tape with hidden pins can be used for a variety of woodworking projects, providing accurate measurements and eliminating guesswork. Colour: AS Shown Material: Aluminum Alloy Package Contents: 1 x extended triangle ruler 1 x L ruler 1 x concealed whistle 2 x screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.