1. Use as a protractor, miter, or framing square 2. perfect for all building and remodeling projects 3. Strong die cast aluminum construction 4. Must-have carpenter's tool for framing, roofing, angling & more 5. Tri-square, meter square, protractor, line scriber and saw guide tool Also useful for hobbyists, home builders, manufacturers, artists. Used to make precise right-angles and as a cutting and drawing guide - features preset measurements. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you Type:B:Metric Colour:Red Material:Aluminum Alloy Package Contents: 1 * Triangular Hole Ruler 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.