1Innovative Layout Tool: Our innovative layout tool is designed for convenient and accurate measuring of angles and layouts in construction and woodworking projects. 2Aluminum Alloy Materials: Crafted from premium aluminum alloy, our ruler boasts exceptional durability and accuracy. Its smoothly design and accurate markings simplify and enhance measurement accuracy. 3Multi Functional Measuring Tool: Our square protractor combines the functions of a square and protractor in one versatile tool. Whether measuring angles, marking layouts, or determining vertical and horizontal readings, this tool provides assistance. 4Fine Workmanship: The ruler is designed in a stylish green color, with comfortable hand feel and clear screw threads, upgrading working experience. 5Compact and Portable Design: Offering a compact and portable design, this rafter square tool set is convenient to use. Easily slip it into your bag or pocket for reliable measurement. 1 xRuler 1 x Clamp Block 1 x Fixing Screw