can be used as a miter, a scribe, a frame, and a ruler. A single tool can meet your various needs. [L Shape Square Ruler]The black L-shaped square ruler measures 12 x 8 inches. Both sides of the square ruler can be measured, one side is inch measurement unit, and the other side is millimeter. This design allows you to meet your needs for different units of measurement, so as to achieve the effect of accurate measurement. [Material]the square ruler is made of metal material, it is thickened and have neat edges. It can be used well during the measurement process without worrying about its damage.They will be your perfect helper for measuring tools. [Accurate Scale]The ruler is engraved with laser, the scale is accurate, the font is clear, not easy to wear,easy to read. The ergonomic design makes it easier to grip. [Widely Application] L-shaped square ruler can be used in many occasions, such as auxiliary cutting, auxiliary drawing, office, construction and carpentry, etc. Suitable for house builders, artists, , engineers, roofers,et. perfect for all building and renovation projects. Material:Metal colour:Black Package Contents: 3 x Carpenter Square Only the above package content, other products are not included. Note: Light 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.