Product name: Multi-functional activity combination Angle rulerMaterial: Aluminum alloyFoot thickness: 2.5mmAngle plate thickness: 36mmSize:300mm: 30*8*3.6cm/11.81*3.15*1.42 inches500mm: 50*8*3.6cm/19.69*3.15*1.42 inchesProfessional multi-function: professional casting combination square, support easy marking, positioning fast and accurate, simple operation. Can be used for length and depth measurement, drawing lines worry, convenient and quick, one foot multi-purpose.Flexible and adjustable: set value limit adjustment ruler, Angle valve disc in the middle of the screw limit adjustment ruler position. Using the fastening nut, the ruler can be moved freely for measurement.Multi-directional Angle: The combination Angle ruler supports 0-360 all-round rotation and fixing, Angle measurement is comprehensive, no dead Angle, and the application range is wider. The inside and outside angles can be measured and measured and plotted.Clear scale: the universal vernier Angle gauge is equipped with a metric British double scale, the use of fine technology manufacturing, high precision, clear.High quality material: Woodworking combination Angle square adopts aluminum alloy corner plate, more wear-resistant. Integrated molding, fine technology, anti-fall, strong anti-erosion ability.