Features: Crafted from premium heat treated carbon steel, this L square ensures service durability and precise 90° angles for accurate measurements in precisions measuring tool and layout applications. Available in 4 multifunction size with a thickened not slip base, this rusts resistant layout square features marking and a easy carry storage case for organized workspaces. Ideal for professional engineers, carpenter, and DIY enthusiasts requiring reliable calibration in woodworking project or metal fabrication tasks. Perfect for workshop layouts, construction site measurements, and home studio project where stable, error frees right angles verification is critical. Achieve excellent alignment each time with this heavy duty carbon steel L square, designs with repair man grade accuracy and small storage for toolkits or job site movement . Specifications: Material: Carbon Steel Size: multiple for option Package Includes: 1xRight angles rulers note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.