1. CLEAR LASER SCALE: Good quality material, wear-resistant and durable, the laser scale is clear and accurate to read 2. ACCURATE POSITIONING: The angle of the rotating handle can be adjusted, the positioning is accurate, and the marking is convenient 3. WOODWORKING ENGRAVING CUTTING: Suitable for woodworking for scribing and cutting at different angles, flexible and convenient to use 4. LIGHTWEIGHT ALUMINUM ALLOY: The aluminum alloy triangle ruler is light in weight, has good strength and corrosion resistance 5. 7 INCH SIDE MEASURING RANGE: The side measuring range of the adjustable triangle ruler is 7 in, thickness for 5 mm, three-side length for 194, 194, 272 mm