Color: black, red and blue for your choiceProduct contains：1PC Aluminum alloy measuring squareSpecifications: 7 * 7 size, the ruler body thickness is 4.2MM (data is measured by hand, there is an error)Applicable places: design drawings, direct cutting, decoration design, angle measurement, hardware and machinery measurement, etc.Advantages: a wider base provides a stable grip on the materialEasy to use: right-angle base, easy to fix, convenient to measure, conversion table on the back