1、[2 Bubble Level] The bubble level provides two clear and stable bubbles for accurate and sensitive horizontal and vertical measurements, ensuring precise leveling works every time. 2、[Easy to Use] The woodworking level comes with a protruding backing on the side, making it easy to start measurements from the edge and ensures alignment accuracy. 3、[Protective Cover] Featuring reinforced protective cover, which effectively guards the 90 and 180 degree bubbles, prolonging the bubbles service life. 4、[Fixed Angle Scribing] This spirit level tool features fixed angle of 45 degree and 90 degree, meeting various scribing needs for both professional and DIY woodworking projects. 5、[Sturdy Construction] Made of aluminium alloy material, this woodworking angle ruler has high durability and sturdiness, providing you with long lasting performance.